/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-04 11:38:18,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-04 11:38:18,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-04 11:38:18,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-04 11:38:18,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-04 11:38:18,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-04 11:38:18,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-04 11:38:18,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-04 11:38:18,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-04 11:38:18,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-04 11:38:18,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-04 11:38:18,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-04 11:38:18,472 INFO L153 SettingsManager]: * Use SBE=true [2024-05-04 11:38:18,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-04 11:38:18,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-04 11:38:18,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-04 11:38:18,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-04 11:38:18,474 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-04 11:38:18,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-04 11:38:18,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-04 11:38:18,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-04 11:38:18,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-04 11:38:18,475 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-04 11:38:18,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-04 11:38:18,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 11:38:18,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-04 11:38:18,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-04 11:38:18,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-04 11:38:18,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 213 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-05-04 11:38:18,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-04 11:38:18,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-04 11:38:18,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-04 11:38:18,744 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-05-04 11:38:18,746 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-05-04 11:38:18,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2024-05-04 11:38:18,747 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2024-05-04 11:38:18,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-04 11:38:18,811 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-05-04 11:38:18,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-04 11:38:18,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-04 11:38:18,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-04 11:38:18,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,860 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-05-04 11:38:18,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-04 11:38:18,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-04 11:38:18,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-04 11:38:18,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-04 11:38:18,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-04 11:38:18,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-04 11:38:18,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-04 11:38:18,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-04 11:38:18,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/1) ... [2024-05-04 11:38:18,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 11:38:18,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:18,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-04 11:38:18,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-04 11:38:18,956 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-05-04 11:38:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-04 11:38:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-04 11:38:18,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-05-04 11:38:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-04 11:38:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-04 11:38:18,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-05-04 11:38:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-04 11:38:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-04 11:38:18,958 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-04 11:38:18,997 INFO L241 CfgBuilder]: Building ICFG [2024-05-04 11:38:18,999 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-04 11:38:19,099 INFO L282 CfgBuilder]: Performing block encoding [2024-05-04 11:38:19,167 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-04 11:38:19,167 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-04 11:38:19,175 INFO L201 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 11:38:19 BoogieIcfgContainer [2024-05-04 11:38:19,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-04 11:38:19,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-04 11:38:19,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-04 11:38:19,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-04 11:38:19,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 11:38:18" (1/2) ... [2024-05-04 11:38:19,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e767b4 and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 11:38:19, skipping insertion in model container [2024-05-04 11:38:19,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 11:38:19" (2/2) ... [2024-05-04 11:38:19,185 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2024-05-04 11:38:19,191 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-04 11:38:19,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-04 11:38:19,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-04 11:38:19,203 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-04 11:38:19,230 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-04 11:38:19,274 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 11:38:19,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 11:38:19,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:19,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 11:38:19,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-04 11:38:19,325 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 11:38:19,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:19,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 11:38:19,366 INFO L357 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, mHoare=true, 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;@4a444fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-05-04 11:38:19,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-04 11:38:19,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:19,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:19,407 INFO L85 PathProgramCache]: Analyzing trace with hash 48291757, now seen corresponding path program 1 times [2024-05-04 11:38:19,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:19,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737494847] [2024-05-04 11:38:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:19,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:19,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:19,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737494847] [2024-05-04 11:38:19,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737494847] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 11:38:19,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 11:38:19,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-04 11:38:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925135309] [2024-05-04 11:38:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 11:38:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-04 11:38:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-04 11:38:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-05-04 11:38:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:19,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:19,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 11:38:19,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:20,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-04 11:38:20,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:20,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1201185172, now seen corresponding path program 1 times [2024-05-04 11:38:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:20,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483212310] [2024-05-04 11:38:20,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:20,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:20,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483212310] [2024-05-04 11:38:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483212310] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195850031] [2024-05-04 11:38:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:20,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:20,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:20,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:20,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-04 11:38:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:20,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-04 11:38:20,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:20,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:20,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 61 [2024-05-04 11:38:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:20,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:21,491 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2024-05-04 11:38:21,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 9 treesize of output 27 [2024-05-04 11:38:21,550 INFO L349 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2024-05-04 11:38:21,550 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 11 treesize of output 55 [2024-05-04 11:38:21,601 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-05-04 11:38:21,602 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 7 treesize of output 7 [2024-05-04 11:38:21,610 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 5 treesize of output 3 [2024-05-04 11:38:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:21,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195850031] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:21,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:21,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-05-04 11:38:21,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376650411] [2024-05-04 11:38:21,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:21,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-05-04 11:38:21,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-05-04 11:38:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-05-04 11:38:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:21,624 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:21,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 11:38:21,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:21,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:21,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-04 11:38:22,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-05-04 11:38:22,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:22,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash -595114163, now seen corresponding path program 2 times [2024-05-04 11:38:22,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:22,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039203887] [2024-05-04 11:38:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:22,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039203887] [2024-05-04 11:38:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039203887] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946376638] [2024-05-04 11:38:22,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-04 11:38:22,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:22,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:22,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:22,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-04 11:38:22,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-04 11:38:22,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:38:22,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 20 conjunts are in the unsatisfiable core [2024-05-04 11:38:22,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:22,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:22,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2024-05-04 11:38:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:22,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:22,987 INFO L349 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2024-05-04 11:38:22,987 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 11 treesize of output 50 [2024-05-04 11:38:23,068 INFO L349 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2024-05-04 11:38:23,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 13 treesize of output 86 [2024-05-04 11:38:23,162 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2024-05-04 11:38:23,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 9 treesize of output 27 [2024-05-04 11:38:23,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:23,176 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 16 [2024-05-04 11:38:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946376638] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:23,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:23,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-05-04 11:38:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326881235] [2024-05-04 11:38:23,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:23,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-05-04 11:38:23,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:23,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-05-04 11:38:23,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-05-04 11:38:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:23,186 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:23,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-05-04 11:38:23,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:23,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:23,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:23,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-04 11:38:23,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:23,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:23,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash -112626643, now seen corresponding path program 3 times [2024-05-04 11:38:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:23,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054038370] [2024-05-04 11:38:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:23,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:23,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054038370] [2024-05-04 11:38:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054038370] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892185333] [2024-05-04 11:38:23,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-04 11:38:23,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:23,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:23,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-04 11:38:23,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-04 11:38:23,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:38:23,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-04 11:38:23,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:23,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:23,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892185333] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:23,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:23,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-05-04 11:38:23,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583726944] [2024-05-04 11:38:23,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:23,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-04 11:38:23,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:23,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-04 11:38:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-05-04 11:38:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:23,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:23,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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) [2024-05-04 11:38:23,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:23,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:23,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:23,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:23,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-05-04 11:38:24,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:24,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1352115952, now seen corresponding path program 1 times [2024-05-04 11:38:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:24,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767176821] [2024-05-04 11:38:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:24,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767176821] [2024-05-04 11:38:24,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767176821] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:24,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264785699] [2024-05-04 11:38:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:24,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:24,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:24,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-04 11:38:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:24,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-04 11:38:24,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264785699] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:24,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-05-04 11:38:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720040578] [2024-05-04 11:38:24,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:24,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-05-04 11:38:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-05-04 11:38:24,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-05-04 11:38:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:24,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:24,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-05-04 11:38:24,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:24,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:24,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:24,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-04 11:38:24,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:24,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:24,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2062158864, now seen corresponding path program 2 times [2024-05-04 11:38:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:24,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426420155] [2024-05-04 11:38:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:24,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426420155] [2024-05-04 11:38:24,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426420155] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:24,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216801219] [2024-05-04 11:38:24,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-04 11:38:24,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:24,391 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:24,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-04 11:38:24,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:38:24,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-04 11:38:24,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:24,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-04 11:38:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216801219] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:24,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:24,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-05-04 11:38:24,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636739386] [2024-05-04 11:38:24,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:24,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-04 11:38:24,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:24,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-04 11:38:24,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-05-04 11:38:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:24,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:24,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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) [2024-05-04 11:38:24,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:24,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:24,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:24,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:24,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-04 11:38:24,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:24,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1320435825, now seen corresponding path program 3 times [2024-05-04 11:38:24,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:24,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140214044] [2024-05-04 11:38:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:24,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:24,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140214044] [2024-05-04 11:38:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140214044] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181612054] [2024-05-04 11:38:24,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-04 11:38:24,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:24,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:24,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:24,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-04 11:38:24,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-05-04 11:38:24,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:38:24,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 26 conjunts are in the unsatisfiable core [2024-05-04 11:38:24,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:45,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:45,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 81 treesize of output 215 [2024-05-04 11:38:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:46,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:46,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:46,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 47 treesize of output 330 [2024-05-04 11:38:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:49,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181612054] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:38:49,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:38:49,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-05-04 11:38:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442817831] [2024-05-04 11:38:49,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:38:49,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-05-04 11:38:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:38:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-05-04 11:38:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-05-04 11:38:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:49,168 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:38:49,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 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) [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:38:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-04 11:38:49,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-04 11:38:49,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-05-04 11:38:49,833 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:38:49,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:38:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1193311216, now seen corresponding path program 4 times [2024-05-04 11:38:49,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:38:49,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659008916] [2024-05-04 11:38:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:38:49,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:38:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:38:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:50,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:38:50,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659008916] [2024-05-04 11:38:50,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659008916] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:38:50,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053532051] [2024-05-04 11:38:50,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-04 11:38:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:38:50,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:38:50,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:38:50,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-04 11:38:50,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-04 11:38:50,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:38:50,085 WARN L260 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 36 conjunts are in the unsatisfiable core [2024-05-04 11:38:50,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:38:50,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:38:50,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 212 [2024-05-04 11:38:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:38:51,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:38:52,830 INFO L349 Elim1Store]: treesize reduction 25, result has 94.3 percent of original size [2024-05-04 11:38:52,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 25 treesize of output 455 [2024-05-04 11:38:56,855 INFO L349 Elim1Store]: treesize reduction 25, result has 95.3 percent of original size [2024-05-04 11:38:56,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 22 new quantified variables, introduced 66 case distinctions, treesize of input 27 treesize of output 547 [2024-05-04 11:39:02,620 INFO L349 Elim1Store]: treesize reduction 20, result has 93.1 percent of original size [2024-05-04 11:39:02,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 21 treesize of output 300 [2024-05-04 11:39:04,151 INFO L349 Elim1Store]: treesize reduction 25, result has 93.1 percent of original size [2024-05-04 11:39:04,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 23 treesize of output 371 [2024-05-04 11:39:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053532051] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:39:06,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:39:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-05-04 11:39:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194369998] [2024-05-04 11:39:06,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:39:06,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-05-04 11:39:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:39:06,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-05-04 11:39:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-05-04 11:39:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:06,562 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:39:06,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-04 11:39:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-04 11:39:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:39:07,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-04 11:39:07,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:39:07,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:39:07,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:39:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 557297713, now seen corresponding path program 5 times [2024-05-04 11:39:07,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:39:07,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671655589] [2024-05-04 11:39:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:39:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:39:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:39:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:07,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:39:07,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671655589] [2024-05-04 11:39:07,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671655589] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:39:07,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29057298] [2024-05-04 11:39:07,695 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-04 11:39:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:39:07,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:39:07,696 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:39:07,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-04 11:39:07,749 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-05-04 11:39:07,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:39:07,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2024-05-04 11:39:07,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:39:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:07,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:39:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:07,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29057298] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:39:07,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:39:07,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 12 [2024-05-04 11:39:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891374837] [2024-05-04 11:39:07,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:39:07,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-04 11:39:07,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:39:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-04 11:39:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-05-04 11:39:07,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:07,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:39:07,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 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) [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:39:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:39:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:39:08,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-04 11:39:08,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:39:08,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:39:08,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:39:08,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2116014866, now seen corresponding path program 6 times [2024-05-04 11:39:08,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:39:08,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780575958] [2024-05-04 11:39:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:39:08,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:39:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:39:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:08,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:39:08,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780575958] [2024-05-04 11:39:08,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780575958] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:39:08,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028954767] [2024-05-04 11:39:08,410 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-04 11:39:08,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:39:08,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:39:08,411 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:39:08,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-05-04 11:39:08,446 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-05-04 11:39:08,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:39:08,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2024-05-04 11:39:08,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:39:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:08,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:39:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:08,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028954767] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:39:08,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:39:08,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-05-04 11:39:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069275437] [2024-05-04 11:39:08,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:39:08,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-04 11:39:08,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:39:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-04 11:39:08,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-05-04 11:39:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:08,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:39:08,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 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) [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:39:08,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:39:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:39:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:39:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:39:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:39:08,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-05-04 11:39:08,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-05-04 11:39:08,853 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:39:08,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:39:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 83554963, now seen corresponding path program 7 times [2024-05-04 11:39:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:39:08,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320499427] [2024-05-04 11:39:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:39:08,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:39:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:39:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:09,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:39:09,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320499427] [2024-05-04 11:39:09,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320499427] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:39:09,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954554787] [2024-05-04 11:39:09,091 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-04 11:39:09,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:39:09,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:39:09,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:39:09,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-05-04 11:39:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:39:09,149 WARN L260 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 41 conjunts are in the unsatisfiable core [2024-05-04 11:39:09,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:39:09,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:39:09,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 121 treesize of output 499 [2024-05-04 11:39:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:39:17,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:39:18,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:39:18,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 32 new quantified variables, introduced 136 case distinctions, treesize of input 79 treesize of output 1162 [2024-05-04 11:40:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:40:17,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954554787] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:40:17,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:40:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2024-05-04 11:40:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187847955] [2024-05-04 11:40:17,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:40:17,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-05-04 11:40:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:40:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-05-04 11:40:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=954, Unknown=0, NotChecked=0, Total=1056 [2024-05-04 11:40:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:40:17,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:40:17,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.393939393939394) internal successors, (46), 32 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:40:17,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:40:17,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:40:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:40:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-04 11:40:18,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-05-04 11:40:18,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:40:18,654 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:40:18,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:40:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash -881912274, now seen corresponding path program 8 times [2024-05-04 11:40:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:40:18,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748108825] [2024-05-04 11:40:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:40:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:40:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:40:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:40:18,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:40:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748108825] [2024-05-04 11:40:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748108825] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:40:18,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340172401] [2024-05-04 11:40:18,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-04 11:40:18,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:40:18,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:40:18,945 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:40:18,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-05-04 11:40:18,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-04 11:40:18,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:40:18,994 WARN L260 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 56 conjunts are in the unsatisfiable core [2024-05-04 11:40:18,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:40:19,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:40:19,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 104 treesize of output 496 [2024-05-04 11:40:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:40:28,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:40:32,626 INFO L349 Elim1Store]: treesize reduction 45, result has 97.0 percent of original size [2024-05-04 11:40:32,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 38 new quantified variables, introduced 190 case distinctions, treesize of input 43 treesize of output 1551 [2024-05-04 11:42:26,440 INFO L349 Elim1Store]: treesize reduction 45, result has 96.7 percent of original size [2024-05-04 11:42:26,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 36 new quantified variables, introduced 171 case distinctions, treesize of input 41 treesize of output 1395 [2024-05-04 11:43:49,669 INFO L349 Elim1Store]: treesize reduction 45, result has 96.3 percent of original size [2024-05-04 11:43:49,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 34 new quantified variables, introduced 153 case distinctions, treesize of input 39 treesize of output 1247 [2024-05-04 11:44:47,774 INFO L349 Elim1Store]: treesize reduction 40, result has 96.3 percent of original size [2024-05-04 11:44:47,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 32 new quantified variables, introduced 136 case distinctions, treesize of input 37 treesize of output 1112 [2024-05-04 11:45:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:31,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340172401] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:45:31,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:45:31,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 33 [2024-05-04 11:45:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430168075] [2024-05-04 11:45:31,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:45:31,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-05-04 11:45:31,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:45:31,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-05-04 11:45:31,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2024-05-04 11:45:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:31,964 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:45:31,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 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) [2024-05-04 11:45:31,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-04 11:45:31,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-05-04 11:45:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-05-04 11:45:34,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-05-04 11:45:34,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-05-04 11:45:34,356 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:45:34,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:45:34,357 INFO L85 PathProgramCache]: Analyzing trace with hash 313819475, now seen corresponding path program 9 times [2024-05-04 11:45:34,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:45:34,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497757122] [2024-05-04 11:45:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:45:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:45:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:45:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:34,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:45:34,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497757122] [2024-05-04 11:45:34,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497757122] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:45:34,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981168372] [2024-05-04 11:45:34,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-04 11:45:34,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:45:34,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:45:34,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:45:34,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-05-04 11:45:34,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-05-04 11:45:34,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:45:34,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-04 11:45:34,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:45:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:34,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:45:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:34,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981168372] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:45:34,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:45:34,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 17 [2024-05-04 11:45:34,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970547220] [2024-05-04 11:45:34,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:45:34,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-05-04 11:45:34,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:45:34,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-05-04 11:45:34,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-05-04 11:45:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:34,702 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:45:34,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 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) [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-05-04 11:45:34,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-05-04 11:45:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-04 11:45:35,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-05-04 11:45:35,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-05-04 11:45:35,253 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:45:35,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:45:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1582281674, now seen corresponding path program 10 times [2024-05-04 11:45:35,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:45:35,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519562735] [2024-05-04 11:45:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:45:35,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:45:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:45:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:45:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519562735] [2024-05-04 11:45:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519562735] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:45:35,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731732035] [2024-05-04 11:45:35,360 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-04 11:45:35,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:45:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:45:35,361 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:45:35,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-05-04 11:45:35,393 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-04 11:45:35,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:45:35,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2024-05-04 11:45:35,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:45:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:35,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:45:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:35,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731732035] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-04 11:45:35,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-04 11:45:35,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-05-04 11:45:35,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445439517] [2024-05-04 11:45:35,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-04 11:45:35,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-05-04 11:45:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 11:45:35,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-05-04 11:45:35,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-05-04 11:45:35,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:35,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 11:45:35,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 21 states have internal predecessors, (41), 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) [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-05-04 11:45:35,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 11:45:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-05-04 11:45:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-05-04 11:45:35,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-05-04 11:45:35,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-05-04 11:45:35,959 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-04 11:45:35,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 11:45:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash 560148043, now seen corresponding path program 11 times [2024-05-04 11:45:35,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 11:45:35,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030674032] [2024-05-04 11:45:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 11:45:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 11:45:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 11:45:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:45:36,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 11:45:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030674032] [2024-05-04 11:45:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030674032] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-04 11:45:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651243101] [2024-05-04 11:45:36,417 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-04 11:45:36,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:45:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 11:45:36,418 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-04 11:45:36,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-05-04 11:45:36,449 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-05-04 11:45:36,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-04 11:45:36,450 WARN L260 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 56 conjunts are in the unsatisfiable core [2024-05-04 11:45:36,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-04 11:46:38,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:46:38,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 161 treesize of output 911 [2024-05-04 11:47:12,395 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 11:47:12,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-04 11:47:16,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-04 11:47:16,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 48 new quantified variables, introduced 300 case distinctions, treesize of input 111 treesize of output 2506 [2024-05-04 11:51:12,433 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-05-04 11:51:12,437 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-04 11:51:12,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-05-04 11:51:12,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-05-04 11:51:12,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-04 11:51:12,638 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 68 more [2024-05-04 11:51:12,642 INFO L158 Benchmark]: Toolchain (without parser) took 773831.31ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 246.1MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 992.4MB. Max. memory is 8.0GB. [2024-05-04 11:51:12,642 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-04 11:51:12,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.67ms. Allocated memory is still 273.7MB. Free memory was 246.1MB in the beginning and 245.5MB in the end (delta: 608.1kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-04 11:51:12,642 INFO L158 Benchmark]: Boogie Preprocessor took 13.35ms. Allocated memory is still 273.7MB. Free memory was 245.5MB in the beginning and 244.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-05-04 11:51:12,642 INFO L158 Benchmark]: RCFGBuilder took 299.05ms. Allocated memory is still 273.7MB. Free memory was 244.5MB in the beginning and 231.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-04 11:51:12,643 INFO L158 Benchmark]: TraceAbstraction took 773464.18ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 229.8MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 976.7MB. Max. memory is 8.0GB. [2024-05-04 11:51:12,643 INFO L338 ainManager$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 159.4MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.67ms. Allocated memory is still 273.7MB. Free memory was 246.1MB in the beginning and 245.5MB in the end (delta: 608.1kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.35ms. Allocated memory is still 273.7MB. Free memory was 245.5MB in the beginning and 244.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 299.05ms. Allocated memory is still 273.7MB. Free memory was 244.5MB in the beginning and 231.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 773464.18ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 229.8MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 976.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-05-04 11:51:12,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request...