/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT -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/parallel/misc-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 20:28:25,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 20:28:25,464 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 20:28:25,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 20:28:25,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 20:28:25,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 20:28:25,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 20:28:25,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 20:28:25,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 20:28:25,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 20:28:25,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 20:28:25,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 20:28:25,499 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 20:28:25,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 20:28:25,502 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 20:28:25,502 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 20:28:25,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 20:28:25,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 20:28:25,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 20:28:25,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 20:28:25,503 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 20:28:25,504 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 20:28:25,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-22 20:28:25,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 20:28:25,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 20:28:25,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 20:28:25,744 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 20:28:25,745 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 20:28:25,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl [2025-01-22 20:28:25,746 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl' [2025-01-22 20:28:25,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 20:28:25,766 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 20:28:25,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 20:28:25,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 20:28:25,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 20:28:25,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,783 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 20:28:25,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 20:28:25,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 20:28:25,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 20:28:25,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 20:28:25,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,791 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 20:28:25,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 20:28:25,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 20:28:25,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 20:28:25,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/1) ... [2025-01-22 20:28:25,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 20:28:25,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:25,815 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 20:28:25,825 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 20:28:25,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 20:28:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 20:28:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 20:28:25,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 20:28:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 20:28:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 20:28:25,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 20:28:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 20:28:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 20:28:25,849 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 20:28:25,885 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 20:28:25,886 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 20:28:25,973 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 20:28:25,973 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 20:28:26,020 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 20:28:26,020 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 20:28:26,021 INFO L201 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 08:28:26 BoogieIcfgContainer [2025-01-22 20:28:26,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 20:28:26,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 20:28:26,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 20:28:26,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 20:28:26,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 08:28:25" (1/2) ... [2025-01-22 20:28:26,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a683d2 and model type misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 08:28:26, skipping insertion in model container [2025-01-22 20:28:26,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 08:28:26" (2/2) ... [2025-01-22 20:28:26,029 INFO L128 eAbstractionObserver]: Analyzing ICFG misc-2.wvr.bpl [2025-01-22 20:28:26,040 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 20:28:26,042 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG misc-2.wvr.bpl that has 3 procedures, 13 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 20:28:26,042 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 20:28:26,074 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 20:28:26,112 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 20:28:26,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 20:28:26,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:26,117 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 20:28:26,118 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 20:28:26,164 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 20:28:26,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 20:28:26,185 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;@13464833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 20:28:26,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 20:28:26,562 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 20:28:26,563 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:26,563 INFO L139 ounterexampleChecker]: Examining path program with hash -376467623, occurence #1 [2025-01-22 20:28:26,563 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:28:26,563 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:26,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:26,566 INFO L85 PathProgramCache]: Analyzing trace with hash -990857496, now seen corresponding path program 1 times [2025-01-22 20:28:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316366584] [2025-01-22 20:28:26,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:28:26,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:26,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-22 20:28:26,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-22 20:28:26,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:28:26,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:26,660 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 20:28:26,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:26,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316366584] [2025-01-22 20:28:26,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316366584] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:28:26,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:28:26,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 20:28:26,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478916396] [2025-01-22 20:28:26,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:28:26,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 20:28:26,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:26,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 20:28:26,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 20:28:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,701 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:26,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 20:28:26,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:26,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 20:28:26,728 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 20:28:26,728 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:26,728 INFO L139 ounterexampleChecker]: Examining path program with hash -376467623, occurence #2 [2025-01-22 20:28:26,729 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:28:26,729 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-22 20:28:26,729 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:26,729 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-22 20:28:26,729 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:28:26,729 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-22 20:28:26,729 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:26,729 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:28:26,730 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:26,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash -651086343, now seen corresponding path program 1 times [2025-01-22 20:28:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:26,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115668069] [2025-01-22 20:28:26,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:28:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:26,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-22 20:28:26,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-22 20:28:26,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:28:26,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:26,825 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 20:28:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115668069] [2025-01-22 20:28:26,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115668069] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:28:26,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:28:26,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 20:28:26,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66755292] [2025-01-22 20:28:26,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:28:26,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 20:28:26,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:26,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 20:28:26,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-22 20:28:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,829 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 20:28:26,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:26,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:26,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-22 20:28:26,877 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 20:28:26,878 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:26,878 INFO L139 ounterexampleChecker]: Examining path program with hash -1059921706, occurence #1 [2025-01-22 20:28:26,878 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:28:26,878 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:26,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash 62050615, now seen corresponding path program 1 times [2025-01-22 20:28:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027428084] [2025-01-22 20:28:26,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:28:26,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:26,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-22 20:28:26,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-22 20:28:26,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:28:26,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:26,935 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 20:28:26,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:26,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027428084] [2025-01-22 20:28:26,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027428084] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:28:26,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:28:26,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 20:28:26,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548759287] [2025-01-22 20:28:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:28:26,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 20:28:26,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:26,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 20:28:26,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-22 20:28:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,936 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:26,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 20:28:26,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:26,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:26,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:26,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-22 20:28:26,988 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 20:28:26,988 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:26,988 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #1 [2025-01-22 20:28:26,988 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 20:28:26,988 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:26,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1484093110, now seen corresponding path program 1 times [2025-01-22 20:28:26,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372261671] [2025-01-22 20:28:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:28:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:26,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 20:28:27,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 20:28:27,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:28:27,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:28:27,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:27,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372261671] [2025-01-22 20:28:27,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372261671] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:28:27,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119892903] [2025-01-22 20:28:27,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 20:28:27,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:27,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:27,107 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 20:28:27,109 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 20:28:27,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 20:28:27,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 20:28:27,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 20:28:27,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:27,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-22 20:28:27,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:28:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:28:27,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:28:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:28:27,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119892903] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:28:27,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:28:27,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2025-01-22 20:28:27,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949124232] [2025-01-22 20:28:27,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:28:27,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-22 20:28:27,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:27,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-22 20:28:27,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-22 20:28:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:27,213 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:27,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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 20:28:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:27,300 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 20:28:27,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:27,494 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 20:28:27,494 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:27,494 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #2 [2025-01-22 20:28:27,494 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:28:27,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-22 20:28:27,494 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:28:27,494 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-22 20:28:27,495 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:27,495 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:28:27,495 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:27,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1257851692, now seen corresponding path program 2 times [2025-01-22 20:28:27,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:27,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140230761] [2025-01-22 20:28:27,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 20:28:27,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:27,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-01-22 20:28:27,513 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-01-22 20:28:27,513 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 20:28:27,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 20:28:27,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140230761] [2025-01-22 20:28:27,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140230761] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:28:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774903706] [2025-01-22 20:28:27,751 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 20:28:27,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:27,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:27,754 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 20:28:27,756 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 20:28:27,778 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-01-22 20:28:27,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-01-22 20:28:27,783 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 20:28:27,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:27,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-22 20:28:27,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:28:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 20:28:27,914 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:28:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 20:28:28,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774903706] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:28:28,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:28:28,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-01-22 20:28:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711830316] [2025-01-22 20:28:28,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:28:28,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-22 20:28:28,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:28,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-22 20:28:28,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-22 20:28:28,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,048 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:28,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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 20:28:28,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-22 20:28:28,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:28,330 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 20:28:28,330 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:28,330 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #3 [2025-01-22 20:28:28,330 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:28:28,331 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-22 20:28:28,331 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:28,331 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-22 20:28:28,331 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:28:28,331 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-22 20:28:28,331 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:28,331 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:28:28,331 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:28,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:28,332 INFO L85 PathProgramCache]: Analyzing trace with hash 339421749, now seen corresponding path program 3 times [2025-01-22 20:28:28,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:28,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721093688] [2025-01-22 20:28:28,332 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 20:28:28,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:28,336 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 3 equivalence classes. [2025-01-22 20:28:28,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 14 of 14 statements. [2025-01-22 20:28:28,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-22 20:28:28,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:28,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 20:28:28,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:28,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721093688] [2025-01-22 20:28:28,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721093688] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 20:28:28,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 20:28:28,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-22 20:28:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893220325] [2025-01-22 20:28:28,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 20:28:28,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 20:28:28,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:28,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 20:28:28,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-22 20:28:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,384 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:28,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-22 20:28:28,434 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:28:28,435 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:28,435 INFO L139 ounterexampleChecker]: Examining path program with hash -1059921706, occurence #2 [2025-01-22 20:28:28,435 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:28:28,435 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-22 20:28:28,435 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:28:28,435 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-22 20:28:28,435 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:28,435 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:28:28,435 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:28,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1052558707, now seen corresponding path program 4 times [2025-01-22 20:28:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:28,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312518499] [2025-01-22 20:28:28,435 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:28:28,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:28,438 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-01-22 20:28:28,440 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-22 20:28:28,440 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:28:28,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 20:28:28,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:28,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312518499] [2025-01-22 20:28:28,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312518499] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:28:28,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611425058] [2025-01-22 20:28:28,486 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 20:28:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:28,488 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 20:28:28,490 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 20:28:28,513 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-01-22 20:28:28,521 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-22 20:28:28,521 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 20:28:28,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:28,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-22 20:28:28,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:28:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-22 20:28:28,542 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:28:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 20:28:28,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611425058] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:28:28,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:28:28,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 8 [2025-01-22 20:28:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263827099] [2025-01-22 20:28:28,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:28:28,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-22 20:28:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:28,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-22 20:28:28,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-01-22 20:28:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,691 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:28,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:28,738 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 20:28:28,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:28,938 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 20:28:28,938 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 20:28:28,939 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #4 [2025-01-22 20:28:28,939 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 20:28:28,939 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-22 20:28:28,939 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-22 20:28:28,939 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-22 20:28:28,939 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 20:28:28,939 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-22 20:28:28,939 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 20:28:28,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 20:28:28,939 INFO L85 PathProgramCache]: Analyzing trace with hash -843113330, now seen corresponding path program 5 times [2025-01-22 20:28:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 20:28:28,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643851578] [2025-01-22 20:28:28,940 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:28:28,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 20:28:28,945 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 15 statements into 4 equivalence classes. [2025-01-22 20:28:28,951 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 20:28:28,951 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-01-22 20:28:28,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:28:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 20:28:29,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643851578] [2025-01-22 20:28:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643851578] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 20:28:29,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915396881] [2025-01-22 20:28:29,031 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 20:28:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 20:28:29,038 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 20:28:29,039 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 20:28:29,060 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 15 statements into 4 equivalence classes. [2025-01-22 20:28:29,070 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 20:28:29,070 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-01-22 20:28:29,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 20:28:29,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-22 20:28:29,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 20:28:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 20:28:29,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 20:28:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-22 20:28:29,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915396881] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 20:28:29,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 20:28:29,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 6] total 16 [2025-01-22 20:28:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821502161] [2025-01-22 20:28:29,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 20:28:29,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-22 20:28:29,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 20:28:29,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-22 20:28:29,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-01-22 20:28:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:29,301 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 20:28:29,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 20:28:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-22 20:28:29,691 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-01-22 20:28:29,691 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-22 20:28:29,692 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-22 20:28:29,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-22 20:28:29,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 20:28:29,897 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2025-01-22 20:28:29,899 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 20:28:29,899 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 20:28:29,908 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 20:28:29,909 INFO L201 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 08:28:29 BasicIcfg [2025-01-22 20:28:29,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 20:28:29,910 INFO L158 Benchmark]: Toolchain (without parser) took 4143.77ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 80.8MB in the beginning and 80.8MB in the end (delta: -35.5kB). Peak memory consumption was 24.6MB. Max. memory is 16.0GB. [2025-01-22 20:28:29,910 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:28:29,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.47ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:28:29,910 INFO L158 Benchmark]: Boogie Preprocessor took 9.78ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.8MB in the end (delta: 664.1kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 20:28:29,910 INFO L158 Benchmark]: RCFGBuilder took 226.03ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.7MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-01-22 20:28:29,911 INFO L158 Benchmark]: TraceAbstraction took 3885.53ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.1MB in the beginning and 80.8MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. [2025-01-22 20:28:29,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.47ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 9.78ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.8MB in the end (delta: 664.1kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 226.03ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.7MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 3885.53ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.1MB in the beginning and 80.8MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. 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: 370, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 117, dependent conditional: 117, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 253, independent: 253, independent conditional: 0, independent unconditional: 253, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 0, independent unconditional: 253, 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: 60, independent: 60, independent conditional: 0, independent unconditional: 60, 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: 60, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 340, independent: 340, independent conditional: 0, independent unconditional: 340, 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: 253, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 60, unknown conditional: 0, unknown unconditional: 60] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, 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, Eliminated conditions: 195, Maximal queried relation: 0, Independence queries for same thread: 117, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 16, Number of trivial persistent sets: 13, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 370, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 117, dependent conditional: 117, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 195, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 253, independent: 253, independent conditional: 0, independent unconditional: 253, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 253, independent: 253, independent conditional: 0, independent unconditional: 253, 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: 60, independent: 60, independent conditional: 0, independent unconditional: 60, 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: 60, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 340, independent: 340, independent conditional: 0, independent unconditional: 340, 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: 253, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 60, unknown conditional: 0, unknown unconditional: 60] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, 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, Eliminated conditions: 195, Maximal queried relation: 0, Independence queries for same thread: 117 - PositiveResult [Line: 59]: 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, 19 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 1.1s, 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: 63, 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 12 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 20/66 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 7, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-22 20:28:29,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...