/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-a343466-m [2025-01-29 18:57:12,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-29 18:57:12,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-29 18:57:12,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-29 18:57:12,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-29 18:57:13,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-29 18:57:13,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-29 18:57:13,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-29 18:57:13,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-29 18:57:13,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-29 18:57:13,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-29 18:57:13,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-29 18:57:13,010 INFO L153 SettingsManager]: * Use SBE=true [2025-01-29 18:57:13,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-29 18:57:13,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-29 18:57:13,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-29 18:57:13,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-29 18:57:13,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-29 18:57:13,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2025-01-29 18:57:13,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-29 18:57:13,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-29 18:57:13,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-29 18:57:13,245 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-29 18:57:13,245 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-29 18:57:13,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl [2025-01-29 18:57:13,246 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl' [2025-01-29 18:57:13,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-29 18:57:13,273 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-29 18:57:13,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-29 18:57:13,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-29 18:57:13,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-29 18:57:13,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,292 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-29 18:57:13,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-29 18:57:13,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-29 18:57:13,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-29 18:57:13,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-29 18:57:13,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-29 18:57:13,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-29 18:57:13,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-29 18:57:13,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-29 18:57:13,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/1) ... [2025-01-29 18:57:13,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-29 18:57:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:13,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-29 18:57:13,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-29 18:57:13,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-29 18:57:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-29 18:57:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-29 18:57:13,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-29 18:57:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-29 18:57:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-29 18:57:13,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-29 18:57:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-29 18:57:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-29 18:57:13,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-29 18:57:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-29 18:57:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-29 18:57:13,375 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-29 18:57:13,412 INFO L234 CfgBuilder]: Building ICFG [2025-01-29 18:57:13,414 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-29 18:57:13,486 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-29 18:57:13,487 INFO L283 CfgBuilder]: Performing block encoding [2025-01-29 18:57:13,513 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-29 18:57:13,516 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-29 18:57:13,516 INFO L201 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 06:57:13 BoogieIcfgContainer [2025-01-29 18:57:13,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-29 18:57:13,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-29 18:57:13,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-29 18:57:13,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-29 18:57:13,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 06:57:13" (1/2) ... [2025-01-29 18:57:13,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cd2343 and model type ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 06:57:13, skipping insertion in model container [2025-01-29 18:57:13,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 06:57:13" (2/2) ... [2025-01-29 18:57:13,522 INFO L128 eAbstractionObserver]: Analyzing ICFG ring.wvr.bpl [2025-01-29 18:57:13,531 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-29 18:57:13,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ring.wvr.bpl that has 4 procedures, 40 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-29 18:57:13,533 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-29 18:57:13,565 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-29 18:57:13,597 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-29 18:57:13,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-29 18:57:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:13,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-29 18:57:13,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-29 18:57:13,644 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-29 18:57:13,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-29 18:57:13,665 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;@5add4d66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-29 18:57:13,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-29 18:57:13,793 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)] === [2025-01-29 18:57:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1202207507, now seen corresponding path program 1 times [2025-01-29 18:57:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724321893] [2025-01-29 18:57:13,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 18:57:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:13,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-29 18:57:13,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-29 18:57:13,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:13,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:13,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:13,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724321893] [2025-01-29 18:57:13,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724321893] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:13,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 18:57:13,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-29 18:57:13,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622080474] [2025-01-29 18:57:13,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:13,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-29 18:57:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:13,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-29 18:57:13,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-29 18:57:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:13,906 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:13,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:13,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:13,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-29 18:57:13,972 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)] === [2025-01-29 18:57:13,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash 815546214, now seen corresponding path program 1 times [2025-01-29 18:57:13,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:13,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090747950] [2025-01-29 18:57:13,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 18:57:13,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:13,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-29 18:57:13,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-29 18:57:13,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:13,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:14,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090747950] [2025-01-29 18:57:14,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090747950] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:14,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 18:57:14,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-29 18:57:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38450574] [2025-01-29 18:57:14,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:14,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-29 18:57:14,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:14,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-29 18:57:14,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-29 18:57:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,023 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:14,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-29 18:57:14,136 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)] === [2025-01-29 18:57:14,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash 159941334, now seen corresponding path program 1 times [2025-01-29 18:57:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:14,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395901226] [2025-01-29 18:57:14,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 18:57:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:14,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-29 18:57:14,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-29 18:57:14,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:14,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-29 18:57:14,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:14,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395901226] [2025-01-29 18:57:14,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395901226] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:14,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 18:57:14,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-29 18:57:14,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727127804] [2025-01-29 18:57:14,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:14,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-29 18:57:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:14,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-29 18:57:14,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-29 18:57:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:14,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:14,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-29 18:57:14,285 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)] === [2025-01-29 18:57:14,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1548926882, now seen corresponding path program 1 times [2025-01-29 18:57:14,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:14,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143742120] [2025-01-29 18:57:14,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-29 18:57:14,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:14,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-29 18:57:14,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-29 18:57:14,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:14,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:14,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:14,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143742120] [2025-01-29 18:57:14,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143742120] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:14,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 18:57:14,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-29 18:57:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829953789] [2025-01-29 18:57:14,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:14,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-29 18:57:14,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:14,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-29 18:57:14,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-29 18:57:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,389 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:14,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:14,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:14,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-29 18:57:14,451 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)] === [2025-01-29 18:57:14,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 56304176, now seen corresponding path program 2 times [2025-01-29 18:57:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387808820] [2025-01-29 18:57:14,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 18:57:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:14,462 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-01-29 18:57:14,478 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-01-29 18:57:14,478 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:14,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387808820] [2025-01-29 18:57:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387808820] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153409091] [2025-01-29 18:57:14,631 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 18:57:14,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:14,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:14,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:14,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-29 18:57:14,660 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-01-29 18:57:14,680 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-01-29 18:57:14,680 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:14,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:14,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-29 18:57:14,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:14,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:14,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:15,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:15,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 18:57:15,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:15,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-29 18:57:15,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:15,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2025-01-29 18:57:15,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:15,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2025-01-29 18:57:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:15,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153409091] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 18:57:15,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 18:57:15,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 25 [2025-01-29 18:57:15,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717828434] [2025-01-29 18:57:15,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 18:57:15,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-29 18:57:15,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:15,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-29 18:57:15,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2025-01-29 18:57:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:15,523 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:15,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 25 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:15,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:15,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:15,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:15,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:15,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-29 18:57:16,080 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 [2025-01-29 18:57:16,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:16,275 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)] === [2025-01-29 18:57:16,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash -429857131, now seen corresponding path program 3 times [2025-01-29 18:57:16,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:16,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39441149] [2025-01-29 18:57:16,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-29 18:57:16,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:16,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 47 statements into 3 equivalence classes. [2025-01-29 18:57:16,288 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 47 of 47 statements. [2025-01-29 18:57:16,288 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-29 18:57:16,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39441149] [2025-01-29 18:57:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39441149] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:16,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-29 18:57:16,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-29 18:57:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661454500] [2025-01-29 18:57:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:16,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-29 18:57:16,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:16,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-29 18:57:16,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-29 18:57:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:16,333 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:16,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-29 18:57:16,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:16,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-29 18:57:16,500 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)] === [2025-01-29 18:57:16,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1265688675, now seen corresponding path program 4 times [2025-01-29 18:57:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:16,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301010289] [2025-01-29 18:57:16,500 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 18:57:16,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:16,505 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 47 statements into 2 equivalence classes. [2025-01-29 18:57:16,512 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-29 18:57:16,512 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 18:57:16,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:16,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:16,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301010289] [2025-01-29 18:57:16,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301010289] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:16,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720078613] [2025-01-29 18:57:16,567 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-29 18:57:16,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:16,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:16,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-29 18:57:16,592 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 47 statements into 2 equivalence classes. [2025-01-29 18:57:16,602 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-29 18:57:16,602 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-29 18:57:16,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:16,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-29 18:57:16,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-29 18:57:16,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-29 18:57:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720078613] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-29 18:57:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-29 18:57:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-29 18:57:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105217833] [2025-01-29 18:57:16,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-29 18:57:16,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-29 18:57:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:16,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-29 18:57:16,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-29 18:57:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:16,630 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:16,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:16,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:16,665 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 [2025-01-29 18:57:16,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:16,863 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)] === [2025-01-29 18:57:16,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash -925693479, now seen corresponding path program 5 times [2025-01-29 18:57:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:16,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807938497] [2025-01-29 18:57:16,864 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 18:57:16,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:16,872 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-01-29 18:57:16,881 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-01-29 18:57:16,882 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:16,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:17,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:17,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807938497] [2025-01-29 18:57:17,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807938497] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:17,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134962460] [2025-01-29 18:57:17,202 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-29 18:57:17,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:17,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:17,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:17,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-29 18:57:17,224 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-01-29 18:57:17,236 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-01-29 18:57:17,237 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:17,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:17,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-29 18:57:17,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:17,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2025-01-29 18:57:17,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:17,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2025-01-29 18:57:17,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:17,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2025-01-29 18:57:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:17,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 18:57:18,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:18,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-29 18:57:18,499 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2025-01-29 18:57:18,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 59 [2025-01-29 18:57:18,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:18,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 75 [2025-01-29 18:57:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:18,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134962460] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 18:57:18,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 18:57:18,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 17] total 38 [2025-01-29 18:57:18,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582679799] [2025-01-29 18:57:18,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 18:57:18,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-01-29 18:57:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:18,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-01-29 18:57:18,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1247, Unknown=0, NotChecked=0, Total=1482 [2025-01-29 18:57:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:18,780 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:18,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.5128205128205128) internal successors, (98), 38 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:18,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-01-29 18:57:20,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-29 18:57:21,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:21,168 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)] === [2025-01-29 18:57:21,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:21,168 INFO L85 PathProgramCache]: Analyzing trace with hash -898924083, now seen corresponding path program 6 times [2025-01-29 18:57:21,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:21,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893567755] [2025-01-29 18:57:21,169 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 18:57:21,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:21,173 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 52 statements into 3 equivalence classes. [2025-01-29 18:57:21,186 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 52 of 52 statements. [2025-01-29 18:57:21,186 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-29 18:57:21,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:21,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893567755] [2025-01-29 18:57:21,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893567755] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190619187] [2025-01-29 18:57:21,270 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-29 18:57:21,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:21,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:21,272 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:21,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-29 18:57:21,294 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 52 statements into 3 equivalence classes. [2025-01-29 18:57:21,306 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 52 of 52 statements. [2025-01-29 18:57:21,306 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-01-29 18:57:21,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:21,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-29 18:57:21,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:21,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:21,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 18:57:21,380 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-01-29 18:57:21,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 10 [2025-01-29 18:57:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:21,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190619187] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 18:57:21,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 18:57:21,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2025-01-29 18:57:21,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085548712] [2025-01-29 18:57:21,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 18:57:21,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-29 18:57:21,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:21,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-29 18:57:21,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-29 18:57:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:21,405 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:21,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:21,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:21,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:21,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:21,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-01-29 18:57:21,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-29 18:57:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-29 18:57:21,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-29 18:57:21,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:21,840 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-29 18:57:21,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1443265606, now seen corresponding path program 7 times [2025-01-29 18:57:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484216888] [2025-01-29 18:57:21,841 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 18:57:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:21,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-29 18:57:21,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-29 18:57:21,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:21,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:22,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:22,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484216888] [2025-01-29 18:57:22,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484216888] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:22,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729716523] [2025-01-29 18:57:22,131 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-29 18:57:22,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:22,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:22,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-29 18:57:22,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-29 18:57:22,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-29 18:57:22,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-29 18:57:22,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:22,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-29 18:57:22,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:22,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:22,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-29 18:57:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:22,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 18:57:22,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:22,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2025-01-29 18:57:22,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:22,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2025-01-29 18:57:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729716523] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 18:57:22,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 18:57:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 13 [2025-01-29 18:57:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905861392] [2025-01-29 18:57:22,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 18:57:22,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-29 18:57:22,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:22,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-29 18:57:22,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-01-29 18:57:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:22,380 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:22,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-29 18:57:22,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-29 18:57:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-29 18:57:22,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-29 18:57:22,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-29 18:57:22,862 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-29 18:57:22,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-29 18:57:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash 712657206, now seen corresponding path program 8 times [2025-01-29 18:57:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-29 18:57:22,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872562877] [2025-01-29 18:57:22,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 18:57:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-29 18:57:22,865 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-29 18:57:22,884 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-29 18:57:22,884 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:22,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:23,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-29 18:57:23,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872562877] [2025-01-29 18:57:23,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872562877] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-29 18:57:23,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625522677] [2025-01-29 18:57:23,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-29 18:57:23,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-29 18:57:23,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-29 18:57:23,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-29 18:57:23,520 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-29 18:57:23,539 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-29 18:57:23,539 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-29 18:57:23,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-29 18:57:23,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-01-29 18:57:23,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-29 18:57:24,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:24,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2025-01-29 18:57:24,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:24,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2025-01-29 18:57:24,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:24,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 21 [2025-01-29 18:57:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:24,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-29 18:57:25,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:25,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 59 [2025-01-29 18:57:25,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:25,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 85 [2025-01-29 18:57:25,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-29 18:57:25,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 108 [2025-01-29 18:57:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-29 18:57:25,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625522677] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-29 18:57:25,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-29 18:57:25,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 21] total 52 [2025-01-29 18:57:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165365026] [2025-01-29 18:57:25,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-29 18:57:25,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-01-29 18:57:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-29 18:57:25,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-01-29 18:57:25,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2025-01-29 18:57:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:25,935 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-29 18:57:25,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.2641509433962264) internal successors, (120), 52 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-29 18:57:25,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-29 18:57:25,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-29 18:57:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-29 18:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-01-29 18:57:30,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2025-01-29 18:57:30,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-29 18:57:30,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-29 18:57:30,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-29 18:57:30,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-29 18:57:31,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-29 18:57:31,045 INFO L422 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2025-01-29 18:57:31,047 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-29 18:57:31,047 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-29 18:57:31,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-29 18:57:31,056 INFO L201 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 06:57:31 BasicIcfg [2025-01-29 18:57:31,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-29 18:57:31,057 INFO L158 Benchmark]: Toolchain (without parser) took 17783.36ms. Allocated memory was 226.5MB in the beginning and 293.6MB in the end (delta: 67.1MB). Free memory was 137.6MB in the beginning and 206.5MB in the end (delta: -68.9MB). Peak memory consumption was 1.8MB. Max. memory is 16.0GB. [2025-01-29 18:57:31,057 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 18:57:31,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.19ms. Allocated memory is still 226.5MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 18:57:31,057 INFO L158 Benchmark]: Boogie Preprocessor took 19.63ms. Allocated memory is still 226.5MB. Free memory was 137.6MB in the beginning and 135.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 18:57:31,057 INFO L158 Benchmark]: RCFGBuilder took 202.57ms. Allocated memory is still 226.5MB. Free memory was 135.6MB in the beginning and 124.2MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-01-29 18:57:31,058 INFO L158 Benchmark]: TraceAbstraction took 17538.48ms. Allocated memory was 226.5MB in the beginning and 293.6MB in the end (delta: 67.1MB). Free memory was 124.2MB in the beginning and 206.5MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-29 18:57:31,058 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 0.14ms. Allocated memory is still 226.5MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 19.19ms. Allocated memory is still 226.5MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 19.63ms. Allocated memory is still 226.5MB. Free memory was 137.6MB in the beginning and 135.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 202.57ms. Allocated memory is still 226.5MB. Free memory was 135.6MB in the beginning and 124.2MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 17538.48ms. Allocated memory was 226.5MB in the beginning and 293.6MB in the end (delta: 67.1MB). Free memory was 124.2MB in the beginning and 206.5MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5439, independent: 4410, independent conditional: 3160, independent unconditional: 1250, dependent: 1029, dependent conditional: 1025, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4469, independent: 4410, independent conditional: 0, independent unconditional: 4410, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1011, independent: 1007, independent conditional: 0, independent unconditional: 1007, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1011, independent: 1001, independent conditional: 0, independent unconditional: 1001, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 4469, independent: 3403, independent conditional: 0, independent unconditional: 3403, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 1011, unknown conditional: 0, unknown unconditional: 1011] , Statistics on independence cache: Total cache size (in pairs): 1011, Positive cache size: 1007, Positive conditional cache size: 0, Positive unconditional cache size: 1007, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 970, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 214, Number of trivial persistent sets: 126, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5439, independent: 4410, independent conditional: 3160, independent unconditional: 1250, dependent: 1029, dependent conditional: 1025, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4469, independent: 4410, independent conditional: 0, independent unconditional: 4410, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1011, independent: 1007, independent conditional: 0, independent unconditional: 1007, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1011, independent: 1001, independent conditional: 0, independent unconditional: 1001, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 4469, independent: 3403, independent conditional: 0, independent unconditional: 3403, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 1011, unknown conditional: 0, unknown unconditional: 1011] , Statistics on independence cache: Total cache size (in pairs): 1011, Positive cache size: 1007, Positive conditional cache size: 0, Positive unconditional cache size: 1007, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 970 - PositiveResult [Line: 104]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 8.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 224, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 769 NumberOfCodeBlocks, 769 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1002 ConstructedInterpolants, 28 QuantifiedInterpolants, 8206 SizeOfPredicates, 48 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 5/93 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-29 18:57:31,074 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 0 Received shutdown request...