/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 15:45:15,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 15:45:15,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-22 15:45:15,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 15:45:15,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 15:45:15,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 15:45:15,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 15:45:15,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 15:45:15,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 15:45:15,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 15:45:15,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 15:45:15,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 15:45:15,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 15:45:15,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 15:45:15,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 15:45:15,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 15:45:15,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-22 15:45:15,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 15:45:15,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 15:45:15,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 15:45:15,680 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 15:45:15,682 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 15:45:15,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl [2025-01-22 15:45:15,684 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl' [2025-01-22 15:45:15,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 15:45:15,714 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 15:45:15,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 15:45:15,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 15:45:15,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 15:45:15,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,738 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 15:45:15,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 15:45:15,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 15:45:15,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 15:45:15,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 15:45:15,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,746 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 15:45:15,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 15:45:15,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 15:45:15,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 15:45:15,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/1) ... [2025-01-22 15:45:15,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 15:45:15,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:15,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-22 15:45:15,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 15:45:15,797 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 15:45:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 15:45:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 15:45:15,797 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 15:45:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 15:45:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 15:45:15,797 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 15:45:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 15:45:15,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 15:45:15,798 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 15:45:15,836 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 15:45:15,837 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 15:45:15,935 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 15:45:15,935 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 15:45:15,979 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 15:45:15,979 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-22 15:45:15,980 INFO L201 PluginConnector]: Adding new model array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 03:45:15 BoogieIcfgContainer [2025-01-22 15:45:15,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 15:45:15,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 15:45:15,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 15:45:15,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 15:45:15,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 03:45:15" (1/2) ... [2025-01-22 15:45:15,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a0ac04 and model type array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 03:45:15, skipping insertion in model container [2025-01-22 15:45:15,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 03:45:15" (2/2) ... [2025-01-22 15:45:15,989 INFO L128 eAbstractionObserver]: Analyzing ICFG array-int-symm.wvr.bpl [2025-01-22 15:45:15,999 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 15:45:16,001 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array-int-symm.wvr.bpl that has 3 procedures, 14 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 15:45:16,002 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 15:45:16,030 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 15:45:16,057 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 15:45:16,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 15:45:16,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:16,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-22 15:45:16,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-22 15:45:16,103 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 15:45:16,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 15:45:16,119 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;@473f700a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 15:45:16,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 15:45:16,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:16,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:16,172 INFO L85 PathProgramCache]: Analyzing trace with hash -722429373, now seen corresponding path program 1 times [2025-01-22 15:45:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295543948] [2025-01-22 15:45:16,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 15:45:16,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:16,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 15:45:16,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 15:45:16,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 15:45:16,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295543948] [2025-01-22 15:45:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295543948] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 15:45:16,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 15:45:16,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-22 15:45:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279362888] [2025-01-22 15:45:16,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 15:45:16,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 15:45:16,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:16,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 15:45:16,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-22 15:45:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:16,418 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:16,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 15:45:16,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:16,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 15:45:16,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:16,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:16,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1251106240, now seen corresponding path program 1 times [2025-01-22 15:45:16,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:16,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594351650] [2025-01-22 15:45:16,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 15:45:16,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:16,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-22 15:45:16,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-22 15:45:16,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 15:45:16,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:16,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594351650] [2025-01-22 15:45:16,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594351650] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 15:45:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661866252] [2025-01-22 15:45:16,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 15:45:16,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:16,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:16,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 15:45:16,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-22 15:45:16,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-22 15:45:16,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-22 15:45:16,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 15:45:16,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:16,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-22 15:45:16,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 15:45:16,980 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 43 treesize of output 35 [2025-01-22 15:45:16,983 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 35 treesize of output 27 [2025-01-22 15:45:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:17,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 15:45:17,155 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-01-22 15:45:17,155 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 28 treesize of output 23 [2025-01-22 15:45:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:17,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661866252] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 15:45:17,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 15:45:17,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-22 15:45:17,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240287599] [2025-01-22 15:45:17,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 15:45:17,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-22 15:45:17,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:17,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-22 15:45:17,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-01-22 15:45:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:17,170 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:17,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 15:45:17,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:17,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:17,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-22 15:45:17,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:17,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:17,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash 894918778, now seen corresponding path program 2 times [2025-01-22 15:45:17,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:17,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819421892] [2025-01-22 15:45:17,641 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 15:45:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:17,652 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-01-22 15:45:17,671 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-22 15:45:17,672 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 15:45:17,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 15:45:17,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:17,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819421892] [2025-01-22 15:45:17,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819421892] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 15:45:17,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144106617] [2025-01-22 15:45:17,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 15:45:17,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:17,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:17,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 15:45:17,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-22 15:45:17,958 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-01-22 15:45:17,970 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-22 15:45:17,970 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 15:45:17,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:17,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-22 15:45:17,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 15:45:18,086 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 43 treesize of output 35 [2025-01-22 15:45:18,089 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 35 treesize of output 27 [2025-01-22 15:45:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:18,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 15:45:18,241 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-01-22 15:45:18,242 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 28 treesize of output 23 [2025-01-22 15:45:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 15:45:18,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144106617] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 15:45:18,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 15:45:18,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 8] total 18 [2025-01-22 15:45:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812644329] [2025-01-22 15:45:18,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 15:45:18,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-22 15:45:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:18,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-22 15:45:18,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2025-01-22 15:45:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:18,259 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:18,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 18 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) [2025-01-22 15:45:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:18,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-22 15:45:18,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:18,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:18,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash -725346758, now seen corresponding path program 3 times [2025-01-22 15:45:18,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:18,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604770139] [2025-01-22 15:45:18,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 15:45:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:18,819 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 5 equivalence classes. [2025-01-22 15:45:18,850 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 19 of 19 statements. [2025-01-22 15:45:18,850 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 15:45:18,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-22 15:45:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604770139] [2025-01-22 15:45:19,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604770139] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 15:45:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350780007] [2025-01-22 15:45:19,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 15:45:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:19,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 15:45:19,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-22 15:45:19,156 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 5 equivalence classes. [2025-01-22 15:45:19,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 19 of 19 statements. [2025-01-22 15:45:19,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 15:45:19,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:19,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-22 15:45:19,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 15:45:19,333 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 43 treesize of output 35 [2025-01-22 15:45:19,340 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 35 treesize of output 27 [2025-01-22 15:45:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:19,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 15:45:19,493 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-01-22 15:45:19,493 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 42 treesize of output 33 [2025-01-22 15:45:19,498 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 21 treesize of output 13 [2025-01-22 15:45:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-22 15:45:19,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350780007] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 15:45:19,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 15:45:19,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 8] total 20 [2025-01-22 15:45:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665929284] [2025-01-22 15:45:19,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 15:45:19,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-22 15:45:19,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:19,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-22 15:45:19,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2025-01-22 15:45:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:19,517 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:19,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.5) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 15:45:19,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:19,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:19,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:19,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-22 15:45:20,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-22 15:45:20,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:20,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:20,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 458389101, now seen corresponding path program 4 times [2025-01-22 15:45:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:20,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950311718] [2025-01-22 15:45:20,296 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 15:45:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:20,301 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 20 statements into 2 equivalence classes. [2025-01-22 15:45:20,316 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-22 15:45:20,316 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 15:45:20,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-22 15:45:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:21,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950311718] [2025-01-22 15:45:21,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950311718] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 15:45:21,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168815476] [2025-01-22 15:45:21,335 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 15:45:21,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:21,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 15:45:21,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 15:45:21,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-22 15:45:21,355 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 20 statements into 2 equivalence classes. [2025-01-22 15:45:21,368 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-22 15:45:21,368 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 15:45:21,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:21,371 WARN L254 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-22 15:45:21,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 15:45:22,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 71 [2025-01-22 15:45:22,071 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 51 treesize of output 39 [2025-01-22 15:45:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:22,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 15:45:24,228 INFO L349 Elim1Store]: treesize reduction 152, result has 36.9 percent of original size [2025-01-22 15:45:24,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 319 treesize of output 319 [2025-01-22 15:45:24,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 15:45:24,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 20 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 279 treesize of output 431 [2025-01-22 15:45:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:25,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168815476] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 15:45:25,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 15:45:25,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 33 [2025-01-22 15:45:25,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996249248] [2025-01-22 15:45:25,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 15:45:25,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-01-22 15:45:25,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:25,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-01-22 15:45:25,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=905, Unknown=0, NotChecked=0, Total=1056 [2025-01-22 15:45:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:25,378 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:25,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 15:45:25,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:25,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:25,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:25,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-22 15:45:25,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:29,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-22 15:45:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-22 15:45:29,052 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 [2025-01-22 15:45:29,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 15:45:29,241 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 15:45:29,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 15:45:29,241 INFO L85 PathProgramCache]: Analyzing trace with hash 309918150, now seen corresponding path program 1 times [2025-01-22 15:45:29,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 15:45:29,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145234134] [2025-01-22 15:45:29,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 15:45:29,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 15:45:29,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 15:45:29,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 15:45:29,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 15:45:29,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 15:45:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 15:45:29,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 15:45:29,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145234134] [2025-01-22 15:45:29,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145234134] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 15:45:29,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 15:45:29,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-22 15:45:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953553218] [2025-01-22 15:45:29,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 15:45:29,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 15:45:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 15:45:29,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 15:45:29,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-22 15:45:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:29,271 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 15:45:29,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 15:45:29,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:29,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:29,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:29,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-22 15:45:29,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-22 15:45:29,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-22 15:45:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 15:45:29,354 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-01-22 15:45:29,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-22 15:45:29,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-22 15:45:29,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-22 15:45:29,359 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2025-01-22 15:45:29,361 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 15:45:29,361 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 15:45:29,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-22 15:45:29,371 INFO L201 PluginConnector]: Adding new model array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 03:45:29 BasicIcfg [2025-01-22 15:45:29,371 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 15:45:29,372 INFO L158 Benchmark]: Toolchain (without parser) took 13658.07ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 82.2MB in the beginning and 220.9MB in the end (delta: -138.7MB). Peak memory consumption was 167.9MB. Max. memory is 16.0GB. [2025-01-22 15:45:29,373 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 15:45:29,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.83ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 15:45:29,374 INFO L158 Benchmark]: Boogie Preprocessor took 10.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.2MB in the end (delta: 713.2kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 15:45:29,374 INFO L158 Benchmark]: RCFGBuilder took 229.84ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 69.1MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-22 15:45:29,374 INFO L158 Benchmark]: TraceAbstraction took 13388.79ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 68.5MB in the beginning and 220.9MB in the end (delta: -152.4MB). Peak memory consumption was 159.5MB. Max. memory is 16.0GB. [2025-01-22 15:45:29,375 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 0.38ms. Allocated memory is still 117.4MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.83ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 10.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.2MB in the end (delta: 713.2kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 229.84ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 69.1MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 13388.79ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 68.5MB in the beginning and 220.9MB in the end (delta: -152.4MB). Peak memory consumption was 159.5MB. 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: 509, independent: 369, independent conditional: 290, independent unconditional: 79, dependent: 140, dependent conditional: 140, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 369, independent: 369, independent conditional: 0, independent unconditional: 369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 369, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 79, unknown conditional: 0, unknown unconditional: 79] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 140, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 509, independent: 369, independent conditional: 290, independent unconditional: 79, dependent: 140, dependent conditional: 140, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 369, independent: 369, independent conditional: 0, independent unconditional: 369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 369, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 79, unknown conditional: 0, unknown unconditional: 79] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 140 - PositiveResult [Line: 66]: 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 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 5.0s, 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: 89, 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, 7.0s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 4753 SizeOfPredicates, 30 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 47/169 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! [2025-01-22 15:45:29,395 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...