/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6 [2024-11-16 01:26:34,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 01:26:34,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2024-11-16 01:26:34,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 01:26:34,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 01:26:34,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 01:26:34,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 01:26:34,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 01:26:34,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 01:26:34,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 01:26:34,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 01:26:34,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 01:26:34,470 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 01:26:34,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 01:26:34,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 01:26:34,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 01:26:34,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-16 01:26:34,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-16 01:26:34,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 01:26:34,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 01:26:34,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 01:26:34,710 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-11-16 01:26:34,712 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-11-16 01:26:34,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl [2024-11-16 01:26:34,714 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl' [2024-11-16 01:26:34,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 01:26:34,742 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-11-16 01:26:34,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 01:26:34,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 01:26:34,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 01:26:34,751 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,758 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,767 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-11-16 01:26:34,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 01:26:34,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 01:26:34,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 01:26:34,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 01:26:34,775 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,776 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,777 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,777 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,780 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,785 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,786 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,786 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 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 01:26:34,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-16 01:26:34,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-16 01:26:34,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-16 01:26:34,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.11 01:26:34" (1/1) ... [2024-11-16 01:26:34,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-16 01:26:34,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:34,827 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) [2024-11-16 01:26:34,835 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 [2024-11-16 01:26:34,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-11-16 01:26:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 01:26:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 01:26:34,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-11-16 01:26:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 01:26:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 01:26:34,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-11-16 01:26:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 01:26:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 01:26:34,852 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 01:26:34,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-16 01:26:34,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 01:26:34,983 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 01:26:34,984 INFO L287 CfgBuilder]: Performing block encoding [2024-11-16 01:26:35,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 01:26:35,007 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 01:26:35,007 INFO L201 PluginConnector]: Adding new model dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:26:35 BoogieIcfgContainer [2024-11-16 01:26:35,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-16 01:26:35,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 01:26:35,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 01:26:35,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 01:26:35,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.11 01:26:34" (1/2) ... [2024-11-16 01:26:35,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d2adde and model type dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:26:35, skipping insertion in model container [2024-11-16 01:26:35,017 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 16.11 01:26:35" (2/2) ... [2024-11-16 01:26:35,018 INFO L112 eAbstractionObserver]: Analyzing ICFG dec-subseq-array.wvr.bpl [2024-11-16 01:26:35,029 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 01:26:35,032 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG dec-subseq-array.wvr.bpl that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-16 01:26:35,033 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 01:26:35,076 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 01:26:35,146 INFO L126 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 01:26:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-16 01:26:35,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:35,149 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) [2024-11-16 01:26:35,150 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 [2024-11-16 01:26:35,213 INFO L181 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-16 01:26:35,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-16 01:26:35,240 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;@23cf67c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 01:26:35,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-16 01:26:35,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:35,331 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:35,331 INFO L132 ounterexampleChecker]: Examining path program with hash 2117444288, occurence #1 [2024-11-16 01:26:35,331 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:35,331 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:35,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1302130147, now seen corresponding path program 1 times [2024-11-16 01:26:35,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:35,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630815649] [2024-11-16 01:26:35,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:35,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:35,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:35,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630815649] [2024-11-16 01:26:35,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630815649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 01:26:35,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 01:26:35,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 01:26:35,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169695674] [2024-11-16 01:26:35,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 01:26:35,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 01:26:35,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:35,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 01:26:35,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 01:26:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:35,486 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:35,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-11-16 01:26:35,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:35,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 01:26:35,512 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:35,512 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:35,512 INFO L132 ounterexampleChecker]: Examining path program with hash 373452537, occurence #1 [2024-11-16 01:26:35,513 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:35,513 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:35,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -397927904, now seen corresponding path program 1 times [2024-11-16 01:26:35,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:35,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059865272] [2024-11-16 01:26:35,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:35,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:35,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:35,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059865272] [2024-11-16 01:26:35,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059865272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 01:26:35,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 01:26:35,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 01:26:35,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263633598] [2024-11-16 01:26:35,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 01:26:35,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 01:26:35,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:35,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 01:26:35,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 01:26:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:35,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:35,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2024-11-16 01:26:35,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:35,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:35,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 01:26:35,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:35,864 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:35,864 INFO L132 ounterexampleChecker]: Examining path program with hash -369923084, occurence #1 [2024-11-16 01:26:35,864 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:35,864 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:35,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash -585855702, now seen corresponding path program 1 times [2024-11-16 01:26:35,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:35,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727116673] [2024-11-16 01:26:35,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:35,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:36,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727116673] [2024-11-16 01:26:36,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727116673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 01:26:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395396556] [2024-11-16 01:26:36,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:36,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 01:26:36,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:36,130 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) [2024-11-16 01:26:36,132 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 [2024-11-16 01:26:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:36,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 01:26:36,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 01:26:36,290 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 13 treesize of output 9 [2024-11-16 01:26:36,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 01:26:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:36,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 01:26:36,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:26:36,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2024-11-16 01:26:36,422 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 [2024-11-16 01:26:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:36,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395396556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 01:26:36,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 01:26:36,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 11 [2024-11-16 01:26:36,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49782770] [2024-11-16 01:26:36,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 01:26:36,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 01:26:36,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:36,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 01:26:36,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-16 01:26:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:36,453 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:36,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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) [2024-11-16 01:26:36,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:36,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:36,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:36,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 01:26:36,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 01:26:36,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:36,812 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:36,812 INFO L132 ounterexampleChecker]: Examining path program with hash -2113914835, occurence #1 [2024-11-16 01:26:36,813 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:36,813 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:36,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1463763481, now seen corresponding path program 2 times [2024-11-16 01:26:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:36,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689442935] [2024-11-16 01:26:36,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:36,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689442935] [2024-11-16 01:26:36,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689442935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 01:26:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315394565] [2024-11-16 01:26:36,910 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 01:26:36,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 01:26:36,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:36,912 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) [2024-11-16 01:26:36,914 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 [2024-11-16 01:26:36,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 01:26:36,946 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 01:26:36,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 01:26:36,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 01:26:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 01:26:36,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 01:26:36,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315394565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 01:26:36,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 01:26:36,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-16 01:26:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048988970] [2024-11-16 01:26:36,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 01:26:36,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 01:26:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:36,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 01:26:36,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 01:26:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:36,979 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:36,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-16 01:26:36,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:36,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:36,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:36,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:37,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 01:26:37,243 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 [2024-11-16 01:26:37,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:37,244 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:37,244 INFO L132 ounterexampleChecker]: Examining path program with hash -369923084, occurence #2 [2024-11-16 01:26:37,244 INFO L137 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-16 01:26:37,244 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-16 01:26:37,245 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 01:26:37,245 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-16 01:26:37,245 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 01:26:37,245 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-16 01:26:37,246 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 01:26:37,246 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-16 01:26:37,246 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 01:26:37,246 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-16 01:26:37,246 INFO L194 ounterexampleChecker]: No commutativity condition found. [2024-11-16 01:26:37,246 INFO L158 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-16 01:26:37,246 WARN L177 ounterexampleChecker]: Statements were already independent. [2024-11-16 01:26:37,246 WARN L199 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-16 01:26:37,246 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:37,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:37,247 INFO L85 PathProgramCache]: Analyzing trace with hash 555625923, now seen corresponding path program 3 times [2024-11-16 01:26:37,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:37,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152162482] [2024-11-16 01:26:37,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 01:26:37,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152162482] [2024-11-16 01:26:37,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152162482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 01:26:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831320753] [2024-11-16 01:26:37,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 01:26:37,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 01:26:37,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:37,585 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) [2024-11-16 01:26:37,586 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 [2024-11-16 01:26:37,627 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 01:26:37,627 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 01:26:37,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 01:26:37,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 01:26:37,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:26:37,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2024-11-16 01:26:37,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:26:37,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2024-11-16 01:26:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:37,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 01:26:38,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:26:38,319 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 34 treesize of output 56 [2024-11-16 01:26:38,434 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 [2024-11-16 01:26:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 01:26:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831320753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 01:26:38,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 01:26:38,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 28 [2024-11-16 01:26:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693234747] [2024-11-16 01:26:38,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 01:26:38,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 01:26:38,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:38,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 01:26:38,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2024-11-16 01:26:38,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:38,457 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:38,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 28 states have internal predecessors, (61), 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) [2024-11-16 01:26:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:38,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:38,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:38,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:38,747 WARN L331 ript$VariableManager]: TermVariable v_subst_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-16 01:26:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 01:26:39,170 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 [2024-11-16 01:26:39,355 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 [2024-11-16 01:26:39,355 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:39,356 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:39,356 INFO L132 ounterexampleChecker]: Examining path program with hash -130832885, occurence #1 [2024-11-16 01:26:39,356 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:39,356 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:39,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:39,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1642684981, now seen corresponding path program 4 times [2024-11-16 01:26:39,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:39,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598891149] [2024-11-16 01:26:39,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:39,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 01:26:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598891149] [2024-11-16 01:26:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598891149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 01:26:39,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 01:26:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 01:26:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276909743] [2024-11-16 01:26:39,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 01:26:39,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 01:26:39,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 01:26:39,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 01:26:39,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 01:26:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:39,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-16 01:26:39,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-11-16 01:26:39,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-16 01:26:39,573 WARN L331 ript$VariableManager]: TermVariable v_subst_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-16 01:26:39,603 WARN L331 ript$VariableManager]: TermVariable v_subst_1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-16 01:26:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 01:26:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 01:26:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 01:26:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 01:26:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 01:26:39,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 01:26:39,744 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 01:26:39,744 INFO L312 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-16 01:26:39,744 INFO L132 ounterexampleChecker]: Examining path program with hash -112130361, occurence #1 [2024-11-16 01:26:39,744 INFO L134 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-16 01:26:39,744 INFO L322 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-16 01:26:39,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 01:26:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1406122450, now seen corresponding path program 5 times [2024-11-16 01:26:39,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 01:26:39,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022918566] [2024-11-16 01:26:39,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 01:26:39,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 01:26:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 01:26:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 01:26:40,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 01:26:40,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022918566] [2024-11-16 01:26:40,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022918566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 01:26:40,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523403765] [2024-11-16 01:26:40,507 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 01:26:40,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 01:26:40,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-16 01:26:40,509 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) [2024-11-16 01:26:40,510 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 [2024-11-16 01:26:40,548 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-16 01:26:40,548 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 01:26:40,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-16 01:26:40,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 01:27:02,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:27:02,562 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 191 treesize of output 365 [2024-11-16 01:27:04,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 01:27:04,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 147 treesize of output 737 [2024-11-16 01:30:06,873 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") [2024-11-16 01:30:06,874 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-16 01:30:06,877 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 [2024-11-16 01:30:06,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 01:30:07,075 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 [2024-11-16 01:30:07,089 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 [2024-11-16 01:30:07,090 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java: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.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:326) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 68 more [2024-11-16 01:30:07,095 INFO L158 Benchmark]: Toolchain (without parser) took 212352.68ms. Allocated memory was 100.7MB in the beginning and 1.0GB in the end (delta: 947.9MB). Free memory was 54.2MB in the beginning and 470.2MB in the end (delta: -416.0MB). Peak memory consumption was 631.6MB. Max. memory is 8.0GB. [2024-11-16 01:30:07,095 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 01:30:07,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.35ms. Allocated memory is still 100.7MB. Free memory was 54.2MB in the beginning and 53.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-16 01:30:07,095 INFO L158 Benchmark]: Boogie Preprocessor took 18.05ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 52.3MB in the end (delta: 642.7kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-16 01:30:07,095 INFO L158 Benchmark]: RCFGBuilder took 218.83ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 43.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-11-16 01:30:07,098 INFO L158 Benchmark]: TraceAbstraction took 212084.80ms. Allocated memory was 100.7MB in the beginning and 1.0GB in the end (delta: 947.9MB). Free memory was 42.4MB in the beginning and 470.2MB in the end (delta: -427.8MB). Peak memory consumption was 619.0MB. Max. memory is 8.0GB. [2024-11-16 01:30:07,099 INFO L338 ainManager$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 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.35ms. Allocated memory is still 100.7MB. Free memory was 54.2MB in the beginning and 53.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 18.05ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 52.3MB in the end (delta: 642.7kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 218.83ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 43.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 212084.80ms. Allocated memory was 100.7MB in the beginning and 1.0GB in the end (delta: 947.9MB). Free memory was 42.4MB in the beginning and 470.2MB in the end (delta: -427.8MB). Peak memory consumption was 619.0MB. Max. memory is 8.0GB. * 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...