/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type true -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-03 15:01:17,405 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-03 15:01:17,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-03 15:01:17,500 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-03 15:01:17,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-03 15:01:17,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-03 15:01:17,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-03 15:01:17,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-03 15:01:17,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-03 15:01:17,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-03 15:01:17,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Use SBE=true [2023-05-03 15:01:17,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-03 15:01:17,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-03 15:01:17,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 15:01:17,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-03 15:01:17,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-03 15:01:17,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-03 15:01:17,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-03 15:01:17,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-03 15:01:17,504 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-03 15:01:17,504 INFO L138 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-03 15:01:17,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-03 15:01:17,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-03 15:01:17,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-03 15:01:17,688 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-03 15:01:17,688 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-03 15:01:17,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl [2023-05-03 15:01:17,690 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2023-05-03 15:01:17,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-03 15:01:17,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-03 15:01:17,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-03 15:01:17,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-03 15:01:17,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-03 15:01:17,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,734 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-03 15:01:17,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-03 15:01:17,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-03 15:01:17,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-03 15:01:17,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-03 15:01:17,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-03 15:01:17,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-03 15:01:17,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-03 15:01:17,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-03 15:01:17,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/1) ... [2023-05-03 15:01:17,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 15:01:17,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:17,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-03 15:01:17,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-03 15:01:17,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-03 15:01:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-03 15:01:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-03 15:01:17,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-03 15:01:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-03 15:01:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-03 15:01:17,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-03 15:01:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-03 15:01:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-03 15:01:17,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-03 15:01:17,814 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-03 15:01:17,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-03 15:01:17,816 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-03 15:01:17,863 INFO L235 CfgBuilder]: Building ICFG [2023-05-03 15:01:17,868 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-03 15:01:18,019 INFO L276 CfgBuilder]: Performing block encoding [2023-05-03 15:01:18,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-03 15:01:18,046 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-03 15:01:18,047 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:01:18 BoogieIcfgContainer [2023-05-03 15:01:18,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-03 15:01:18,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-03 15:01:18,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-03 15:01:18,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-03 15:01:18,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:01:17" (1/2) ... [2023-05-03 15:01:18,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ba7f7b and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:01:18, skipping insertion in model container [2023-05-03 15:01:18,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:01:18" (2/2) ... [2023-05-03 15:01:18,089 INFO L112 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2023-05-03 15:01:18,094 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-03 15:01:18,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-03 15:01:18,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-03 15:01:18,112 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-03 15:01:18,166 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-03 15:01:18,208 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 15:01:18,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-03 15:01:18,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:18,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-03 15:01:18,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-03 15:01:18,250 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-03 15:01:18,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-03 15:01:18,273 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=LoopsAndPotentialCycles, 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;@6dca9c1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 15:01:18,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-03 15:01:18,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1653078870, now seen corresponding path program 1 times [2023-05-03 15:01:18,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:18,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124400546] [2023-05-03 15:01:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:18,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:01:18,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:18,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124400546] [2023-05-03 15:01:18,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124400546] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:18,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645146460] [2023-05-03 15:01:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:18,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:18,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:18,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:18,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-03 15:01:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:18,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-03 15:01:18,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-03 15:01:18,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-03 15:01:18,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645146460] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 15:01:18,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-03 15:01:18,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-05-03 15:01:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323487179] [2023-05-03 15:01:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 15:01:18,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-03 15:01:18,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-03 15:01:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-05-03 15:01:18,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:18,777 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:18,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2023-05-03 15:01:18,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:18,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-03 15:01:19,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-03 15:01:19,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:19,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:19,059 INFO L85 PathProgramCache]: Analyzing trace with hash 822033734, now seen corresponding path program 1 times [2023-05-03 15:01:19,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:19,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163204829] [2023-05-03 15:01:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 15:01:19,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:19,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163204829] [2023-05-03 15:01:19,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163204829] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:19,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926670904] [2023-05-03 15:01:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:19,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:19,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:19,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:19,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-03 15:01:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:19,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-03 15:01:19,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 15:01:19,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-03 15:01:19,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926670904] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 15:01:19,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-03 15:01:19,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-05-03 15:01:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987110820] [2023-05-03 15:01:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 15:01:19,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-03 15:01:19,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:19,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-03 15:01:19,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-05-03 15:01:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:19,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:19,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 15:01:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:19,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-03 15:01:19,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:19,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1225222659, now seen corresponding path program 2 times [2023-05-03 15:01:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:19,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350155703] [2023-05-03 15:01:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:19,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:19,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350155703] [2023-05-03 15:01:19,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350155703] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 15:01:19,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-03 15:01:19,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-03 15:01:19,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716859587] [2023-05-03 15:01:19,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 15:01:19,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-03 15:01:19,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:19,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-03 15:01:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-03 15:01:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:19,685 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:19,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2023-05-03 15:01:19,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:19,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:19,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:19,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-03 15:01:19,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:19,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1460634816, now seen corresponding path program 1 times [2023-05-03 15:01:19,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:19,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331783170] [2023-05-03 15:01:19,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:19,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:19,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331783170] [2023-05-03 15:01:19,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331783170] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:19,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799672506] [2023-05-03 15:01:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:19,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:19,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:20,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:20,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-03 15:01:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:20,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-03 15:01:20,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-03 15:01:20,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:20,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 61 [2023-05-03 15:01:20,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 59 [2023-05-03 15:01:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-03 15:01:20,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799672506] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:20,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:20,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 3] total 10 [2023-05-03 15:01:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401742953] [2023-05-03 15:01:20,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:20,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-03 15:01:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:20,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-03 15:01:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-05-03 15:01:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:20,273 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:20,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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) [2023-05-03 15:01:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:20,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:20,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-03 15:01:20,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:20,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash -407407176, now seen corresponding path program 2 times [2023-05-03 15:01:20,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:20,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91221445] [2023-05-03 15:01:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-03 15:01:20,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91221445] [2023-05-03 15:01:20,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91221445] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068116896] [2023-05-03 15:01:20,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 15:01:20,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:20,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:20,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:20,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-03 15:01:20,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 15:01:20,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:01:20,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-03 15:01:20,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-03 15:01:20,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-03 15:01:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068116896] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:21,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:21,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2023-05-03 15:01:21,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071056074] [2023-05-03 15:01:21,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:21,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-03 15:01:21,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-03 15:01:21,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-05-03 15:01:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:21,009 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:21,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-05-03 15:01:21,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:21,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:21,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:21,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-03 15:01:21,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:21,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash 841529394, now seen corresponding path program 3 times [2023-05-03 15:01:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:21,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082377003] [2023-05-03 15:01:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:21,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:21,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082377003] [2023-05-03 15:01:21,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082377003] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:21,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968980182] [2023-05-03 15:01:21,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 15:01:21,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:21,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:21,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:21,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-03 15:01:21,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-05-03 15:01:21,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:01:21,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-03 15:01:21,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:21,621 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:21,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2023-05-03 15:01:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:21,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:21,772 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:21,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 102 [2023-05-03 15:01:21,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 59 [2023-05-03 15:01:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:21,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968980182] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:21,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:21,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-05-03 15:01:21,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899975862] [2023-05-03 15:01:21,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:21,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-03 15:01:21,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:21,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-03 15:01:21,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-05-03 15:01:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:21,918 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:21,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 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) [2023-05-03 15:01:21,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:21,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:21,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:21,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:21,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:22,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-03 15:01:22,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:22,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:22,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:22,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1475751388, now seen corresponding path program 4 times [2023-05-03 15:01:22,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:22,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755364803] [2023-05-03 15:01:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:22,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-03 15:01:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:22,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755364803] [2023-05-03 15:01:22,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755364803] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:22,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548813155] [2023-05-03 15:01:22,727 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-03 15:01:22,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:22,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:22,728 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:22,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-03 15:01:22,777 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-03 15:01:22,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:01:22,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 18 conjunts are in the unsatisfiable core [2023-05-03 15:01:22,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:22,911 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:22,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2023-05-03 15:01:22,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-03 15:01:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:01:22,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:23,054 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:23,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2023-05-03 15:01:23,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 61 [2023-05-03 15:01:23,223 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:23,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 104 [2023-05-03 15:01:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:01:23,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548813155] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:23,380 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:23,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2023-05-03 15:01:23,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097027053] [2023-05-03 15:01:23,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:23,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 15:01:23,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 15:01:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2023-05-03 15:01:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:23,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:23,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.72) internal successors, (118), 24 states have internal predecessors, (118), 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) [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:23,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-05-03 15:01:24,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-05-03 15:01:24,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:24,432 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -859671840, now seen corresponding path program 5 times [2023-05-03 15:01:24,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:24,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769547285] [2023-05-03 15:01:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:24,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:25,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769547285] [2023-05-03 15:01:25,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769547285] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934105997] [2023-05-03 15:01:25,131 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-03 15:01:25,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:25,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:25,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:25,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-03 15:01:25,200 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-05-03 15:01:25,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:01:25,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 18 conjunts are in the unsatisfiable core [2023-05-03 15:01:25,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:25,578 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:25,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 16 [2023-05-03 15:01:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 45 proven. 57 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:25,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:25,986 INFO L356 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2023-05-03 15:01:25,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 104 [2023-05-03 15:01:25,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 59 [2023-05-03 15:01:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 69 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 15:01:26,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934105997] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:26,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:26,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 9] total 34 [2023-05-03 15:01:26,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670372223] [2023-05-03 15:01:26,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:26,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-05-03 15:01:26,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-05-03 15:01:26,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2023-05-03 15:01:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:26,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:26,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.0) internal successors, (175), 34 states have internal predecessors, (175), 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) [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-05-03 15:01:26,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-03 15:01:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-05-03 15:01:29,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-03 15:01:29,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-05-03 15:01:29,313 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:29,314 INFO L85 PathProgramCache]: Analyzing trace with hash -896624719, now seen corresponding path program 6 times [2023-05-03 15:01:29,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:29,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573724846] [2023-05-03 15:01:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:29,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:01:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 40 proven. 210 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-05-03 15:01:30,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:01:30,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573724846] [2023-05-03 15:01:30,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573724846] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:01:30,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040726261] [2023-05-03 15:01:30,790 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-03 15:01:30,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:30,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:01:30,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 15:01:30,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-03 15:01:30,859 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2023-05-03 15:01:30,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:01:30,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 37 conjunts are in the unsatisfiable core [2023-05-03 15:01:30,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:01:31,177 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:31,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 13 [2023-05-03 15:01:31,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-03 15:01:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 150 proven. 88 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-05-03 15:01:31,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:01:31,346 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 15:01:31,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2023-05-03 15:01:31,873 INFO L356 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2023-05-03 15:01:31,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 109 treesize of output 135 [2023-05-03 15:01:31,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 59 [2023-05-03 15:01:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 150 proven. 88 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-05-03 15:01:32,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040726261] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:01:32,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:01:32,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 14] total 39 [2023-05-03 15:01:32,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16115598] [2023-05-03 15:01:32,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:01:32,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-05-03 15:01:32,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:01:32,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-05-03 15:01:32,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2023-05-03 15:01:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:32,079 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:01:32,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.225) internal successors, (169), 39 states have internal predecessors, (169), 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) [2023-05-03 15:01:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-05-03 15:01:32,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-05-03 15:01:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-03 15:01:34,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-05-03 15:01:34,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:01:34,674 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:01:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:01:34,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1777950897, now seen corresponding path program 7 times [2023-05-03 15:01:34,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:01:34,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60848219] [2023-05-03 15:01:34,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:01:34,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:01:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-05-03 15:16:04,109 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 15:16:04,127 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 15:16:05,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-05-03 15:16:05,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown