/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis 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/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 19:48:39,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 19:48:39,549 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 19:48:39,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 19:48:39,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 19:48:39,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 19:48:39,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 19:48:39,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 19:48:39,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 19:48:39,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 19:48:39,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 19:48:39,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 19:48:39,589 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 19:48:39,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:48:39,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 19:48:39,590 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 19:48:39,592 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 19:48:39,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 19:48:39,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-22 19:48:39,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 19:48:39,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 19:48:39,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 19:48:39,828 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 19:48:39,829 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 19:48:39,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2025-01-22 19:48:39,830 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2025-01-22 19:48:39,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 19:48:39,851 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 19:48:39,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 19:48:39,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 19:48:39,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 19:48:39,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,867 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 19:48:39,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 19:48:39,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 19:48:39,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 19:48:39,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 19:48:39,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 19:48:39,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 19:48:39,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 19:48:39,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 19:48:39,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/1) ... [2025-01-22 19:48:39,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:48:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:48:39,909 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 19:48:39,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 19:48:39,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 19:48:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 19:48:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 19:48:39,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 19:48:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 19:48:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 19:48:39,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 19:48:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 19:48:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 19:48:39,937 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-22 19:48:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-22 19:48:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-22 19:48:39,938 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 19:48:39,975 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 19:48:39,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 19:48:40,034 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 19:48:40,034 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 19:48:40,057 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 19:48:40,057 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 19:48:40,057 INFO L201 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:48:40 BoogieIcfgContainer [2025-01-22 19:48:40,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 19:48:40,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 19:48:40,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 19:48:40,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 19:48:40,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:48:39" (1/2) ... [2025-01-22 19:48:40,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23530985 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 07:48:40, skipping insertion in model container [2025-01-22 19:48:40,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:48:40" (2/2) ... [2025-01-22 19:48:40,065 INFO L128 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2025-01-22 19:48:40,074 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 19:48:40,075 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum-fun-alt.wvr.bpl that has 4 procedures, 20 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-22 19:48:40,075 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 19:48:40,105 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-22 19:48:40,131 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:48:40,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 19:48:40,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:48:40,133 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 19:48:40,135 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 19:48:40,176 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 19:48:40,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 19:48:40,188 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;@70464a96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:48:40,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-22 19:48:40,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:48:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:48:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1490265330, now seen corresponding path program 1 times [2025-01-22 19:48:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:48:40,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798171521] [2025-01-22 19:48:40,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:48:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:48:40,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 19:48:40,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 19:48:40,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:48:40,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:40,460 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 19:48:40,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:48:40,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798171521] [2025-01-22 19:48:40,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798171521] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:48:40,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 19:48:40,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 19:48:40,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445513773] [2025-01-22 19:48:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:48:40,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 19:48:40,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:48:40,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 19:48:40,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 19:48:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:40,481 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:48:40,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:48:40,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:48:40,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 19:48:40,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:48:40,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:48:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1906162644, now seen corresponding path program 1 times [2025-01-22 19:48:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:48:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801377413] [2025-01-22 19:48:40,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:48:40,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:48:40,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 19:48:40,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 19:48:40,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:48:40,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:41,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:48:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801377413] [2025-01-22 19:48:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801377413] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:48:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973876381] [2025-01-22 19:48:41,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:48:41,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:48:41,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:48:41,049 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 19:48:41,050 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 19:48:41,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 19:48:41,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 19:48:41,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:48:41,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:41,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-22 19:48:41,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:48:41,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:41,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:48:41,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2025-01-22 19:48:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:41,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:48:41,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:48:41,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 29 treesize of output 116 [2025-01-22 19:48:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:42,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973876381] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:48:42,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:48:42,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-01-22 19:48:42,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587479416] [2025-01-22 19:48:42,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:48:42,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-22 19:48:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:48:42,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-22 19:48:42,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2025-01-22 19:48:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:42,421 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:48:42,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 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 19:48:42,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:48:42,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:48:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:48:43,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-22 19:48:43,386 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 19:48:43,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:48:43,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:48:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -640358690, now seen corresponding path program 2 times [2025-01-22 19:48:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:48:43,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559520574] [2025-01-22 19:48:43,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:48:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:48:43,394 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 19:48:43,399 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 19:48:43,399 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:48:43,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:48:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559520574] [2025-01-22 19:48:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559520574] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:48:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347684614] [2025-01-22 19:48:43,534 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:48:43,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:48:43,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:48:43,536 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 19:48:43,537 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 19:48:43,557 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 19:48:43,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 19:48:43,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:48:43,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:43,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-22 19:48:43,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:48:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:43,708 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:48:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347684614] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:48:43,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:48:43,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 27 [2025-01-22 19:48:43,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600474753] [2025-01-22 19:48:43,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:48:43,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-22 19:48:43,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:48:43,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-22 19:48:43,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2025-01-22 19:48:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:43,895 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:48:43,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:48:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:48:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:48:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:48:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:48:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:48:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 19:48:44,379 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 19:48:44,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:48:44,573 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:48:44,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:48:44,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1192756316, now seen corresponding path program 3 times [2025-01-22 19:48:44,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:48:44,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619127470] [2025-01-22 19:48:44,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:48:44,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:48:44,582 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 19:48:44,606 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 19:48:44,606 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 19:48:44,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:45,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:48:45,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619127470] [2025-01-22 19:48:45,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619127470] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:48:45,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476094886] [2025-01-22 19:48:45,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:48:45,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:48:45,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:48:45,479 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 19:48:45,480 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 19:48:45,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 19:48:45,514 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 19:48:45,514 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 19:48:45,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:48:45,515 WARN L254 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-22 19:48:45,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:48:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,755 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,758 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,761 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,766 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:48:46,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 21 [2025-01-22 19:48:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:48:46,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:48:57,638 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,639 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,640 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,643 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,645 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,645 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,645 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,646 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,647 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,648 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,650 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,650 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,651 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,651 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,652 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,654 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,655 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,655 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,657 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,658 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,659 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,664 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,666 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,667 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,668 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,669 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,672 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,677 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:57,681 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:48:58,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:48:58,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 45 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 46 case distinctions, treesize of input 65 treesize of output 454 [2025-01-22 19:49:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476094886] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:49:02,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:49:02,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 52 [2025-01-22 19:49:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731000337] [2025-01-22 19:49:02,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:49:02,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-01-22 19:49:02,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:49:02,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-01-22 19:49:02,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=2503, Unknown=4, NotChecked=0, Total=2756 [2025-01-22 19:49:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:02,269 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:49:02,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.9245283018867925) internal successors, (102), 52 states have internal predecessors, (102), 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 19:49:02,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:02,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:49:02,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 19:49:02,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:49:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 19:49:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2025-01-22 19:49:18,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-22 19:49:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:18,578 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:49:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:49:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1536302102, now seen corresponding path program 4 times [2025-01-22 19:49:18,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:49:18,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694734769] [2025-01-22 19:49:18,578 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 19:49:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:49:18,582 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 46 statements into 2 equivalence classes. [2025-01-22 19:49:18,585 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-22 19:49:18,585 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 19:49:18,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:18,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:49:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694734769] [2025-01-22 19:49:18,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694734769] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:49:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317802351] [2025-01-22 19:49:18,783 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 19:49:18,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:18,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:49:18,785 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 19:49:18,786 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 19:49:18,804 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 46 statements into 2 equivalence classes. [2025-01-22 19:49:18,814 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-22 19:49:18,814 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 19:49:18,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:18,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-22 19:49:18,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:49:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:19,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:49:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:19,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317802351] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:49:19,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:49:19,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 16] total 34 [2025-01-22 19:49:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072225720] [2025-01-22 19:49:19,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:49:19,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-22 19:49:19,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:49:19,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-22 19:49:19,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2025-01-22 19:49:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:19,316 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:49:19,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 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 19:49:19,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:19,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:49:19,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 19:49:19,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2025-01-22 19:49:19,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 19:49:21,112 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 19:49:21,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:21,307 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:49:21,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:49:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1853170364, now seen corresponding path program 5 times [2025-01-22 19:49:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:49:21,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200861391] [2025-01-22 19:49:21,308 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 19:49:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:49:21,311 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 60 statements into 6 equivalence classes. [2025-01-22 19:49:21,323 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 60 of 60 statements. [2025-01-22 19:49:21,323 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-22 19:49:21,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-01-22 19:49:21,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:49:21,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200861391] [2025-01-22 19:49:21,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200861391] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:49:21,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 19:49:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-22 19:49:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984834376] [2025-01-22 19:49:21,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:49:21,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 19:49:21,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:49:21,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 19:49:21,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-22 19:49:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:21,469 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:49:21,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 19:49:21,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 19:49:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 19:49:21,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-22 19:49:21,515 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:49:21,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:49:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1039373542, now seen corresponding path program 6 times [2025-01-22 19:49:21,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:49:21,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725064017] [2025-01-22 19:49:21,515 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 19:49:21,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:49:21,518 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 6 equivalence classes. [2025-01-22 19:49:21,536 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 58 of 58 statements. [2025-01-22 19:49:21,536 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-22 19:49:21,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-22 19:49:21,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:49:21,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725064017] [2025-01-22 19:49:21,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725064017] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:49:21,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189747462] [2025-01-22 19:49:21,707 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 19:49:21,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:21,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:49:21,709 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 19:49:21,710 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 19:49:21,728 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 6 equivalence classes. [2025-01-22 19:49:21,742 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 58 of 58 statements. [2025-01-22 19:49:21,742 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-22 19:49:21,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:21,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-22 19:49:21,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:49:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 48 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:22,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:49:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 56 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189747462] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:49:22,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:49:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 17] total 34 [2025-01-22 19:49:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414059844] [2025-01-22 19:49:22,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:49:22,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-22 19:49:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:49:22,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-22 19:49:22,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=929, Unknown=0, NotChecked=0, Total=1190 [2025-01-22 19:49:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:22,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:49:22,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.342857142857143) internal successors, (117), 34 states have internal predecessors, (117), 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 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 19:49:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 19:49:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-01-22 19:49:24,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-22 19:49:24,540 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 19:49:24,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:49:24,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:49:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash -339280342, now seen corresponding path program 7 times [2025-01-22 19:49:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:49:24,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888397121] [2025-01-22 19:49:24,541 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 19:49:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:49:24,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-22 19:49:24,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-22 19:49:24,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:49:24,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 85 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-22 19:49:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:49:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888397121] [2025-01-22 19:49:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888397121] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:49:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401121616] [2025-01-22 19:49:24,871 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 19:49:24,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:24,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:49:24,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:49:24,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-22 19:49:24,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-22 19:49:24,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-22 19:49:24,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:49:24,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:24,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-22 19:49:24,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:49:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 85 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-22 19:49:25,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:49:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 25 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401121616] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:49:26,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:49:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 27] total 51 [2025-01-22 19:49:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302822542] [2025-01-22 19:49:26,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:49:26,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-01-22 19:49:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:49:26,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-01-22 19:49:26,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=2114, Unknown=0, NotChecked=0, Total=2652 [2025-01-22 19:49:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:26,021 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:49:26,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.0384615384615383) internal successors, (158), 51 states have internal predecessors, (158), 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 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2025-01-22 19:49:26,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-01-22 19:49:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 19:49:27,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-22 19:49:27,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:27,511 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:49:27,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:49:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1303226352, now seen corresponding path program 8 times [2025-01-22 19:49:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:49:27,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403191973] [2025-01-22 19:49:27,511 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:49:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:49:27,514 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-01-22 19:49:27,529 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-01-22 19:49:27,529 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:49:27,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 150 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 19:49:29,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:49:29,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403191973] [2025-01-22 19:49:29,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403191973] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:49:29,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003300324] [2025-01-22 19:49:29,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:49:29,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:49:29,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:49:29,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:49:29,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-22 19:49:29,603 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-01-22 19:49:29,621 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-01-22 19:49:29,621 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:49:29,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:49:29,624 WARN L254 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 136 conjuncts are in the unsatisfiable core [2025-01-22 19:49:29,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:49:32,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 39 [2025-01-22 19:49:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:49:32,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:49:45,215 WARN L286 SmtUtils]: Spent 9.82s on a formula simplification that was a NOOP. DAG size: 1128 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-22 19:49:45,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:49:45,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 32 select indices, 32 select index equivalence classes, 45 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 451 case distinctions, treesize of input 159 treesize of output 3182 [2025-01-22 19:58:29,906 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 19:58:29,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2025-01-22 19:58:29,907 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-22 19:58:29,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-22 19:58:30,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:58:30,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-22 19:58:30,113 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$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-01-22 19:58:30,116 INFO L158 Benchmark]: Toolchain (without parser) took 590265.41ms. Allocated memory was 117.4MB in the beginning and 578.8MB in the end (delta: 461.4MB). Free memory was 80.6MB in the beginning and 265.5MB in the end (delta: -184.9MB). Peak memory consumption was 360.6MB. Max. memory is 16.0GB. [2025-01-22 19:58:30,116 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:58:30,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.19ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:58:30,117 INFO L158 Benchmark]: Boogie Preprocessor took 14.45ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.6MB in the end (delta: 711.9kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:58:30,117 INFO L158 Benchmark]: RCFGBuilder took 172.88ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 68.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-22 19:58:30,117 INFO L158 Benchmark]: TraceAbstraction took 590056.61ms. Allocated memory was 117.4MB in the beginning and 578.8MB in the end (delta: 461.4MB). Free memory was 67.6MB in the beginning and 265.5MB in the end (delta: -197.8MB). Peak memory consumption was 343.9MB. Max. memory is 16.0GB. [2025-01-22 19:58:30,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.19ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 14.45ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.6MB in the end (delta: 711.9kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 172.88ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 68.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 590056.61ms. Allocated memory was 117.4MB in the beginning and 578.8MB in the end (delta: 461.4MB). Free memory was 67.6MB in the beginning and 265.5MB in the end (delta: -197.8MB). Peak memory consumption was 343.9MB. 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...