/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 19:04:56,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 19:04:56,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-22 19:04:56,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 19:04:56,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 19:04:56,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 19:04:56,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 19:04:56,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 19:04:56,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 19:04:56,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 19:04:56,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 19:04:56,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 19:04:56,777 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 19:04:56,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 19:04:56,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 19:04:56,778 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 19:04:56,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 19:04:56,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 19:04:56,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 19:04:56,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 19:04:56,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:04:56,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 19:04:56,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 19:04:56,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 19:04:56,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 19:04:56,781 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 19:04:56,781 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 19:04:56,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-22 19:04:57,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 19:04:57,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 19:04:57,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 19:04:57,032 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 19:04:57,032 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 19:04:57,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2025-01-22 19:04:57,033 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2025-01-22 19:04:57,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 19:04:57,046 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 19:04:57,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 19:04:57,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 19:04:57,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 19:04:57,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,060 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 19:04:57,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 19:04:57,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 19:04:57,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 19:04:57,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 19:04:57,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 19:04:57,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 19:04:57,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 19:04:57,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 19:04:57,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/1) ... [2025-01-22 19:04:57,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:04:57,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:04:57,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-22 19:04:57,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 19:04:57,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 19:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 19:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 19:04:57,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 19:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 19:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 19:04:57,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 19:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 19:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 19:04:57,121 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 19:04:57,158 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 19:04:57,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 19:04:57,224 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 19:04:57,224 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 19:04:57,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 19:04:57,242 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 19:04:57,242 INFO L201 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:04:57 BoogieIcfgContainer [2025-01-22 19:04:57,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 19:04:57,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 19:04:57,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 19:04:57,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 19:04:57,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:04:57" (1/2) ... [2025-01-22 19:04:57,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea38c8c and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 07:04:57, skipping insertion in model container [2025-01-22 19:04:57,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:04:57" (2/2) ... [2025-01-22 19:04:57,249 INFO L128 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2025-01-22 19:04:57,258 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 19:04:57,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG two-queue.wvr.bpl that has 3 procedures, 19 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 19:04:57,260 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 19:04:57,284 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 19:04:57,315 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:04:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 19:04:57,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:04:57,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-22 19:04:57,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-22 19:04:57,365 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 19:04:57,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 19:04:57,381 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;@160e272b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:04:57,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 19:04:57,570 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 19:04:57,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:04:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1700028853, now seen corresponding path program 1 times [2025-01-22 19:04:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:04:57,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618696987] [2025-01-22 19:04:57,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:04:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:04:57,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-22 19:04:57,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-22 19:04:57,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:04:57,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:04:57,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:04:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618696987] [2025-01-22 19:04:57,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618696987] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:04:57,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 19:04:57,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 19:04:57,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930361863] [2025-01-22 19:04:57,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:04:57,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-22 19:04:57,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:04:57,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 19:04:57,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 19:04:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:57,752 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:04:57,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 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 19:04:57,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:57,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 19:04:57,808 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 19:04:57,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:04:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash 491564923, now seen corresponding path program 1 times [2025-01-22 19:04:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:04:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843385154] [2025-01-22 19:04:57,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:04:57,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:04:57,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-22 19:04:57,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-22 19:04:57,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:04:57,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:04:57,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:04:57,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843385154] [2025-01-22 19:04:57,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843385154] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:04:57,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388956104] [2025-01-22 19:04:57,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:04:57,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:04:57,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:04:57,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:04:57,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-22 19:04:57,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-22 19:04:57,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-22 19:04:57,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:04:57,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:57,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-22 19:04:57,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:04:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-22 19:04:58,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-22 19:04:58,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388956104] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:04:58,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-22 19:04:58,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-22 19:04:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773046269] [2025-01-22 19:04:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:04:58,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 19:04:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:04:58,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 19:04:58,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-22 19:04:58,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:58,052 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:04:58,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:04:58,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:58,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:58,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-22 19:04:58,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:04:58,310 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 19:04:58,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:04:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2090566632, now seen corresponding path program 2 times [2025-01-22 19:04:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:04:58,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397379823] [2025-01-22 19:04:58,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:04:58,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:04:58,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-22 19:04:58,333 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-01-22 19:04:58,333 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:04:58,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-22 19:04:58,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:04:58,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397379823] [2025-01-22 19:04:58,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397379823] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:04:58,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631058899] [2025-01-22 19:04:58,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:04:58,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:04:58,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:04:58,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:04:58,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-22 19:04:58,504 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-22 19:04:58,519 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-01-22 19:04:58,519 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:04:58,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:58,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-22 19:04:58,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:04:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-22 19:04:58,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-22 19:04:58,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631058899] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:04:58,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-22 19:04:58,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-22 19:04:58,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895763660] [2025-01-22 19:04:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:04:58,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 19:04:58,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:04:58,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 19:04:58,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-22 19:04:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:58,561 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:04:58,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:04:58,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:58,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:58,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:58,600 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 19:04:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:04:58,795 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 19:04:58,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:04:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 443649874, now seen corresponding path program 3 times [2025-01-22 19:04:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:04:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924110442] [2025-01-22 19:04:58,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:04:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:04:58,803 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 2 equivalence classes. [2025-01-22 19:04:58,816 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-22 19:04:58,816 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-22 19:04:58,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:59,086 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 19:04:59,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:04:59,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924110442] [2025-01-22 19:04:59,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924110442] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:04:59,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218898964] [2025-01-22 19:04:59,087 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:04:59,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:04:59,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:04:59,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:04:59,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-22 19:04:59,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 2 equivalence classes. [2025-01-22 19:04:59,122 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-22 19:04:59,122 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-22 19:04:59,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:04:59,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-22 19:04:59,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:04:59,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-22 19:04:59,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2025-01-22 19:04:59,383 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 19:04:59,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:04:59,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:04:59,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2025-01-22 19:04:59,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:04:59,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2025-01-22 19:04:59,771 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 19:04:59,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218898964] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:04:59,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:04:59,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2025-01-22 19:04:59,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567730131] [2025-01-22 19:04:59,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:04:59,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-22 19:04:59,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:04:59,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-22 19:04:59,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2025-01-22 19:04:59,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:04:59,774 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:04:59,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:04:59,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:04:59,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:59,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:04:59,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:00,413 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 19:05:00,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:00,612 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 19:05:00,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:05:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash -811426576, now seen corresponding path program 4 times [2025-01-22 19:05:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:05:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117536615] [2025-01-22 19:05:00,613 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 19:05:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:05:00,623 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-01-22 19:05:00,643 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-22 19:05:00,643 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 19:05:00,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-22 19:05:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:05:00,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117536615] [2025-01-22 19:05:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117536615] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:05:00,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999773915] [2025-01-22 19:05:00,780 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 19:05:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:00,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:05:00,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:05:00,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-22 19:05:00,805 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-01-22 19:05:00,819 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-22 19:05:00,819 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 19:05:00,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:00,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-22 19:05:00,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:05:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-22 19:05:00,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:05:00,970 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-22 19:05:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999773915] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:05:00,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:05:00,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2025-01-22 19:05:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991512509] [2025-01-22 19:05:00,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:05:00,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-22 19:05:00,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:05:00,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-22 19:05:00,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-22 19:05:00,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:00,972 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:05:00,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:05:00,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:00,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:00,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:00,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:00,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:01,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-22 19:05:01,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:01,250 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 19:05:01,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:05:01,250 INFO L85 PathProgramCache]: Analyzing trace with hash 638298306, now seen corresponding path program 5 times [2025-01-22 19:05:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:05:01,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940473816] [2025-01-22 19:05:01,252 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 19:05:01,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:05:01,259 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 73 statements into 7 equivalence classes. [2025-01-22 19:05:01,295 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 19:05:01,295 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-22 19:05:01,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 50 proven. 14 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-01-22 19:05:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:05:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940473816] [2025-01-22 19:05:01,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940473816] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:05:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166048611] [2025-01-22 19:05:01,437 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 19:05:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:05:01,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:05:01,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-22 19:05:01,464 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 73 statements into 7 equivalence classes. [2025-01-22 19:05:01,490 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 19:05:01,490 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-22 19:05:01,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:01,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-22 19:05:01,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:05:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 50 proven. 14 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-01-22 19:05:01,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:05:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 50 proven. 14 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-01-22 19:05:01,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166048611] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:05:01,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:05:01,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2025-01-22 19:05:01,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113683564] [2025-01-22 19:05:01,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:05:01,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-22 19:05:01,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:05:01,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-22 19:05:01,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-22 19:05:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:01,645 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:05:01,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:01,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:01,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-22 19:05:01,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-22 19:05:01,902 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 19:05:01,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:05:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2039993214, now seen corresponding path program 6 times [2025-01-22 19:05:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:05:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624834456] [2025-01-22 19:05:01,902 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 19:05:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:05:01,908 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 73 statements into 4 equivalence classes. [2025-01-22 19:05:01,947 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 19:05:01,948 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-01-22 19:05:01,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 21 proven. 69 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-22 19:05:02,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:05:02,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624834456] [2025-01-22 19:05:02,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624834456] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:05:02,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500182312] [2025-01-22 19:05:02,652 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 19:05:02,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:05:02,654 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:05:02,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-22 19:05:02,683 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 73 statements into 4 equivalence classes. [2025-01-22 19:05:02,706 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 73 of 73 statements. [2025-01-22 19:05:02,707 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-01-22 19:05:02,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:02,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 71 conjuncts are in the unsatisfiable core [2025-01-22 19:05:02,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:05:02,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-22 19:05:02,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-22 19:05:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 1 proven. 65 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-01-22 19:05:03,008 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:05:03,212 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:03,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2025-01-22 19:05:03,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:03,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2025-01-22 19:05:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-01-22 19:05:03,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500182312] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:05:03,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:05:03,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 18] total 36 [2025-01-22 19:05:03,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106322795] [2025-01-22 19:05:03,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:05:03,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-01-22 19:05:03,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:05:03,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-01-22 19:05:03,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2025-01-22 19:05:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:03,508 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:05:03,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.27027027027027) internal successors, (84), 36 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-22 19:05:04,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-22 19:05:04,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:04,204 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 19:05:04,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:05:04,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1583450648, now seen corresponding path program 7 times [2025-01-22 19:05:04,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:05:04,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112407610] [2025-01-22 19:05:04,204 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 19:05:04,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:05:04,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-22 19:05:04,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-22 19:05:04,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:05:04,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 19:05:04,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:05:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112407610] [2025-01-22 19:05:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112407610] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:05:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56898344] [2025-01-22 19:05:04,512 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 19:05:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:05:04,514 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:05:04,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-22 19:05:04,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-22 19:05:04,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-22 19:05:04,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:05:04,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:05:04,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-01-22 19:05:04,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:05:04,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:04,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 22 [2025-01-22 19:05:04,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:04,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2025-01-22 19:05:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:05:05,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:05:05,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:05,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 81 [2025-01-22 19:05:06,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:05:06,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 132 [2025-01-22 19:05:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:05:06,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56898344] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:05:06,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:05:06,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 47 [2025-01-22 19:05:06,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106388992] [2025-01-22 19:05:06,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:05:06,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-22 19:05:06,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:05:06,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-22 19:05:06,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=2046, Unknown=0, NotChecked=0, Total=2256 [2025-01-22 19:05:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:06,271 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:05:06,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 47 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-22 19:05:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 19:05:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 19:05:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-01-22 19:05:09,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-01-22 19:05:09,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-22 19:05:09,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-22 19:05:09,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-22 19:05:09,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:05:09,362 INFO L422 BasicCegarLoop]: Path program histogram: [7, 1] [2025-01-22 19:05:09,363 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 19:05:09,363 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 19:05:09,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-22 19:05:09,382 INFO L201 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 07:05:09 BasicIcfg [2025-01-22 19:05:09,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 19:05:09,383 INFO L158 Benchmark]: Toolchain (without parser) took 12337.02ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 80.6MB in the beginning and 80.6MB in the end (delta: 37.8kB). Peak memory consumption was 67.9MB. Max. memory is 16.0GB. [2025-01-22 19:05:09,383 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:05:09,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.54ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:05:09,383 INFO L158 Benchmark]: Boogie Preprocessor took 9.49ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.6MB in the end (delta: 669.0kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:05:09,384 INFO L158 Benchmark]: RCFGBuilder took 171.17ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 68.6MB in the end (delta: 10.0MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:05:09,384 INFO L158 Benchmark]: TraceAbstraction took 12138.18ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 68.0MB in the beginning and 80.6MB in the end (delta: -12.6MB). Peak memory consumption was 67.9MB. Max. memory is 16.0GB. [2025-01-22 19:05:09,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 14.54ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 9.49ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.6MB in the end (delta: 669.0kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 171.17ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 68.6MB in the end (delta: 10.0MB). There was no memory consumed. Max. memory is 16.0GB. * TraceAbstraction took 12138.18ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 68.0MB in the beginning and 80.6MB in the end (delta: -12.6MB). Peak memory consumption was 67.9MB. 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: 987, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 270, dependent conditional: 268, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 767, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 50, dependent conditional: 48, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 767, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 50, dependent conditional: 48, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 943, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 226, dependent conditional: 224, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 943, independent: 717, independent conditional: 7, independent unconditional: 710, dependent: 226, dependent conditional: 123, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 943, independent: 717, independent conditional: 7, independent unconditional: 710, dependent: 226, dependent conditional: 123, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 174, independent: 150, independent conditional: 4, independent unconditional: 146, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 174, independent: 143, independent conditional: 0, independent unconditional: 143, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 7, independent conditional: 4, independent unconditional: 3, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 7, independent conditional: 4, independent unconditional: 3, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 416, independent: 116, independent conditional: 35, independent unconditional: 81, dependent: 300, dependent conditional: 244, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 943, independent: 567, independent conditional: 3, independent unconditional: 564, dependent: 202, dependent conditional: 101, dependent unconditional: 101, unknown: 174, unknown conditional: 26, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 150, Positive conditional cache size: 4, Positive unconditional cache size: 146, Negative cache size: 24, Negative conditional cache size: 22, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 627, Maximal queried relation: 8, Independence queries for same thread: 220, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 40, Number of trivial persistent sets: 30, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 186, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 987, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 270, dependent conditional: 268, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 767, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 50, dependent conditional: 48, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 767, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 50, dependent conditional: 48, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 943, independent: 717, independent conditional: 533, independent unconditional: 184, dependent: 226, dependent conditional: 224, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 943, independent: 717, independent conditional: 7, independent unconditional: 710, dependent: 226, dependent conditional: 123, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 943, independent: 717, independent conditional: 7, independent unconditional: 710, dependent: 226, dependent conditional: 123, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 174, independent: 150, independent conditional: 4, independent unconditional: 146, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 174, independent: 143, independent conditional: 0, independent unconditional: 143, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 7, independent conditional: 4, independent unconditional: 3, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 7, independent conditional: 4, independent unconditional: 3, dependent: 24, dependent conditional: 22, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 416, independent: 116, independent conditional: 35, independent unconditional: 81, dependent: 300, dependent conditional: 244, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 943, independent: 567, independent conditional: 3, independent unconditional: 564, dependent: 202, dependent conditional: 101, dependent unconditional: 101, unknown: 174, unknown conditional: 26, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 150, Positive conditional cache size: 4, Positive unconditional cache size: 146, Negative cache size: 24, Negative conditional cache size: 22, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 627, Maximal queried relation: 8, Independence queries for same thread: 220 - PositiveResult [Line: 62]: 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, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 4.5s, 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: 112, 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, 0.3s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 820 ConstructedInterpolants, 0 QuantifiedInterpolants, 5759 SizeOfPredicates, 30 NumberOfNonLiveVariables, 866 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 634/965 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-22 19:05:09,404 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...