/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 false --traceabstraction.commutativity.condition.synthesis NONE -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 17:00:13,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 17:00:13,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-22 17:00:13,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 17:00:13,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 17:00:13,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 17:00:13,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 17:00:13,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 17:00:13,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 17:00:13,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 17:00:13,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 17:00:13,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 17:00:13,446 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 17:00:13,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 17:00:13,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 17:00:13,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 17:00:13,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 17:00:13,448 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 17:00:13,449 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 17:00:13,449 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 -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-22 17:00:13,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 17:00:13,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 17:00:13,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 17:00:13,747 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 17:00:13,748 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 17:00:13,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl [2025-01-22 17:00:13,752 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl' [2025-01-22 17:00:13,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 17:00:13,774 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 17:00:13,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 17:00:13,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 17:00:13,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 17:00:13,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,794 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 17:00:13,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 17:00:13,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 17:00:13,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 17:00:13,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 17:00:13,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,803 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 17:00:13,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 17:00:13,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 17:00:13,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 17:00:13,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/1) ... [2025-01-22 17:00:13,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 17:00:13,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:13,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-22 17:00:13,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 17:00:13,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 17:00:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 17:00:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 17:00:13,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 17:00:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 17:00:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 17:00:13,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 17:00:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 17:00:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 17:00:13,861 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 17:00:13,899 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 17:00:13,901 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 17:00:13,987 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 17:00:13,987 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 17:00:14,007 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 17:00:14,007 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 17:00:14,007 INFO L201 PluginConnector]: Adding new model dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 05:00:14 BoogieIcfgContainer [2025-01-22 17:00:14,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 17:00:14,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 17:00:14,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 17:00:14,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 17:00:14,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 05:00:13" (1/2) ... [2025-01-22 17:00:14,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af77d56 and model type dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 05:00:14, skipping insertion in model container [2025-01-22 17:00:14,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 05:00:14" (2/2) ... [2025-01-22 17:00:14,014 INFO L128 eAbstractionObserver]: Analyzing ICFG dec-subseq-array.wvr.bpl [2025-01-22 17:00:14,023 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 17:00:14,024 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dec-subseq-array.wvr.bpl that has 3 procedures, 19 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 17:00:14,024 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 17:00:14,052 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 17:00:14,087 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 17:00:14,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 17:00:14,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:14,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-22 17:00:14,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-22 17:00:14,138 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 17:00:14,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 17:00:14,152 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;@137be534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 17:00:14,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 17:00:14,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:14,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash -976777017, now seen corresponding path program 1 times [2025-01-22 17:00:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:14,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168904925] [2025-01-22 17:00:14,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 17:00:14,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:14,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-22 17:00:14,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-22 17:00:14,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 17:00:14,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:14,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 17:00:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168904925] [2025-01-22 17:00:14,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168904925] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 17:00:14,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 17:00:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 17:00:14,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003452178] [2025-01-22 17:00:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 17:00:14,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 17:00:14,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:14,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 17:00:14,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 17:00:14,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:14,540 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:14,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:14,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:14,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:14,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 17:00:14,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:14,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:14,572 INFO L85 PathProgramCache]: Analyzing trace with hash 297479712, now seen corresponding path program 1 times [2025-01-22 17:00:14,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:14,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865583238] [2025-01-22 17:00:14,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 17:00:14,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:14,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-22 17:00:14,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-22 17:00:14,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 17:00:14,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-22 17:00:14,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865583238] [2025-01-22 17:00:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865583238] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 17:00:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158214870] [2025-01-22 17:00:14,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 17:00:14,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:14,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:14,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 17:00:14,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-22 17:00:14,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-22 17:00:14,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-22 17:00:14,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 17:00:14,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:14,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-22 17:00:14,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 17:00:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-22 17:00:14,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-22 17:00:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158214870] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 17:00:14,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-22 17:00:14,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-22 17:00:14,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623411711] [2025-01-22 17:00:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 17:00:14,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 17:00:14,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:14,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 17:00:14,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-22 17:00:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:14,857 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:14,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:14,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:14,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:14,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:14,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:14,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-22 17:00:15,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:15,108 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:15,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash 552221710, now seen corresponding path program 2 times [2025-01-22 17:00:15,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81544711] [2025-01-22 17:00:15,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 17:00:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:15,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-22 17:00:15,122 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-01-22 17:00:15,122 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 17:00:15,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-22 17:00:15,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:15,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81544711] [2025-01-22 17:00:15,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81544711] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 17:00:15,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 17:00:15,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 17:00:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958607099] [2025-01-22 17:00:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 17:00:15,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 17:00:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:15,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 17:00:15,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 17:00:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:15,185 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:15,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:15,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:15,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-22 17:00:15,221 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:15,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:15,222 INFO L85 PathProgramCache]: Analyzing trace with hash 429095387, now seen corresponding path program 3 times [2025-01-22 17:00:15,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:15,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419274337] [2025-01-22 17:00:15,222 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 17:00:15,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:15,229 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 30 statements into 2 equivalence classes. [2025-01-22 17:00:15,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-22 17:00:15,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-22 17:00:15,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-22 17:00:15,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:15,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419274337] [2025-01-22 17:00:15,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419274337] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 17:00:15,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484552093] [2025-01-22 17:00:15,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 17:00:15,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:15,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:15,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 17:00:15,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-22 17:00:15,368 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 30 statements into 2 equivalence classes. [2025-01-22 17:00:15,378 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-22 17:00:15,378 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-22 17:00:15,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:15,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-22 17:00:15,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 17:00:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-22 17:00:15,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-22 17:00:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484552093] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 17:00:15,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-22 17:00:15,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2025-01-22 17:00:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216307469] [2025-01-22 17:00:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 17:00:15,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 17:00:15,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:15,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 17:00:15,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-22 17:00:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:15,418 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:15,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:15,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:15,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 17:00:15,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-22 17:00:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:15,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:15,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash -757827168, now seen corresponding path program 4 times [2025-01-22 17:00:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258017305] [2025-01-22 17:00:15,671 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 17:00:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:15,678 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 41 statements into 2 equivalence classes. [2025-01-22 17:00:15,693 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-22 17:00:15,694 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 17:00:15,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-22 17:00:16,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258017305] [2025-01-22 17:00:16,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258017305] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 17:00:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27915291] [2025-01-22 17:00:16,466 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 17:00:16,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:16,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:16,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 17:00:16,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-22 17:00:16,490 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 41 statements into 2 equivalence classes. [2025-01-22 17:00:16,500 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-22 17:00:16,500 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 17:00:16,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:16,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-01-22 17:00:16,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 17:00:17,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 17:00:17,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 84 [2025-01-22 17:00:17,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 17:00:17,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 16 [2025-01-22 17:00:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 17:00:17,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 17:00:18,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 17:00:18,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 190 [2025-01-22 17:00:20,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-01-22 17:00:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 17:00:20,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27915291] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 17:00:20,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 17:00:20,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21, 21] total 48 [2025-01-22 17:00:20,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936321312] [2025-01-22 17:00:20,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 17:00:20,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-01-22 17:00:20,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:20,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-01-22 17:00:20,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=1981, Unknown=0, NotChecked=0, Total=2352 [2025-01-22 17:00:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:20,292 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:20,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.8571428571428572) internal successors, (91), 48 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:20,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:20,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:20,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:20,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 17:00:20,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 17:00:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-01-22 17:00:24,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-22 17:00:24,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:24,329 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:24,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -992564028, now seen corresponding path program 5 times [2025-01-22 17:00:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:24,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922107140] [2025-01-22 17:00:24,329 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 17:00:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:24,347 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 102 statements into 9 equivalence classes. [2025-01-22 17:00:24,397 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 102 of 102 statements. [2025-01-22 17:00:24,397 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 17:00:24,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 182 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-01-22 17:00:24,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:24,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922107140] [2025-01-22 17:00:24,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922107140] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 17:00:24,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251650298] [2025-01-22 17:00:24,615 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 17:00:24,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:24,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:24,618 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 17:00:24,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-22 17:00:24,644 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 102 statements into 9 equivalence classes. [2025-01-22 17:00:24,676 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 102 of 102 statements. [2025-01-22 17:00:24,676 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 17:00:24,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:24,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-22 17:00:24,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 17:00:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 134 proven. 25 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-01-22 17:00:24,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 17:00:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 134 proven. 25 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-01-22 17:00:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251650298] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 17:00:24,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 17:00:24,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2025-01-22 17:00:24,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020575375] [2025-01-22 17:00:24,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 17:00:24,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-22 17:00:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 17:00:24,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-22 17:00:24,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-22 17:00:24,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:24,951 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 17:00:24,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2025-01-22 17:00:24,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 17:00:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 17:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 17:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 17:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-01-22 17:00:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 17:00:25,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-22 17:00:25,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:25,208 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 17:00:25,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 17:00:25,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1892026594, now seen corresponding path program 6 times [2025-01-22 17:00:25,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 17:00:25,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991038560] [2025-01-22 17:00:25,209 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 17:00:25,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 17:00:25,217 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 121 statements into 10 equivalence classes. [2025-01-22 17:00:25,277 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 121 of 121 statements. [2025-01-22 17:00:25,277 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-22 17:00:25,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 3 proven. 366 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-22 17:00:28,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 17:00:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991038560] [2025-01-22 17:00:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991038560] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 17:00:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901666320] [2025-01-22 17:00:28,715 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 17:00:28,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:00:28,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 17:00:28,719 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 17:00:28,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-22 17:00:28,745 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 121 statements into 10 equivalence classes. [2025-01-22 17:00:28,781 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 121 of 121 statements. [2025-01-22 17:00:28,781 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-22 17:00:28,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 17:00:28,783 WARN L254 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 168 conjuncts are in the unsatisfiable core [2025-01-22 17:00:28,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 17:02:25,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 17:02:25,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 216 treesize of output 864 [2025-01-22 17:02:29,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 17:02:29,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 17:02:29,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 182 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 28 case distinctions, treesize of input 222 treesize of output 332 [2025-01-22 17:02:32,493 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-01-22 17:02:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 17:02:32,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 17:05:12,629 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-22 17:05:12,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-01-22 17:05:12,632 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-22 17:05:12,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-22 17:05:12,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 17:05:12,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-22 17:05:12,839 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) 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$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 47 more [2025-01-22 17:05:12,844 INFO L158 Benchmark]: Toolchain (without parser) took 299069.92ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 81.7MB in the beginning and 323.4MB in the end (delta: -241.7MB). Peak memory consumption was 199.7MB. Max. memory is 16.0GB. [2025-01-22 17:05:12,844 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 17:05:12,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 17:05:12,845 INFO L158 Benchmark]: Boogie Preprocessor took 13.62ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.7MB in the end (delta: 686.4kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 17:05:12,845 INFO L158 Benchmark]: RCFGBuilder took 197.37ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-22 17:05:12,845 INFO L158 Benchmark]: TraceAbstraction took 298834.02ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 68.9MB in the beginning and 323.4MB in the end (delta: -254.5MB). Peak memory consumption was 191.3MB. Max. memory is 16.0GB. [2025-01-22 17:05:12,846 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 13.62ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.7MB in the end (delta: 686.4kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 197.37ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 298834.02ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 68.9MB in the beginning and 323.4MB in the end (delta: -254.5MB). Peak memory consumption was 191.3MB. 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...