/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 false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -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-32214ab [2023-05-19 20:50:10,084 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 20:50:10,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 20:50:10,186 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 20:50:10,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 20:50:10,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 20:50:10,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 20:50:10,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 20:50:10,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 20:50:10,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 20:50:10,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 20:50:10,188 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 20:50:10,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 20:50:10,189 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 20:50:10,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 20:50:10,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 20:50:10,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 20:50:10,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 20:50:10,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 20:50:10,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:50:10,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 20:50:10,191 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 20:50:10,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-19 20:50:10,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 20:50:10,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 20:50:10,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 20:50:10,425 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 20:50:10,427 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 20:50:10,427 INFO L432 ainManager$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 [2023-05-19 20:50:10,428 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2023-05-19 20:50:10,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 20:50:10,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 20:50:10,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 20:50:10,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 20:50:10,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 20:50:10,468 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 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,473 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 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,478 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 20:50:10,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 20:50:10,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 20:50:10,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 20:50:10,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 20:50:10,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,494 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 20:50:10,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 20:50:10,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 20:50:10,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 20:50:10,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/1) ... [2023-05-19 20:50:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:50:10,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:10,539 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) [2023-05-19 20:50:10,569 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 [2023-05-19 20:50:10,580 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 20:50:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 20:50:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 20:50:10,581 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 20:50:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 20:50:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 20:50:10,581 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 20:50:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 20:50:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 20:50:10,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-19 20:50:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-19 20:50:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-19 20:50:10,584 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 20:50:10,624 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 20:50:10,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 20:50:10,720 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 20:50:10,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 20:50:10,773 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 20:50:10,774 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:50:10 BoogieIcfgContainer [2023-05-19 20:50:10,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 20:50:10,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 20:50:10,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 20:50:10,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 20:50:10,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:50:10" (1/2) ... [2023-05-19 20:50:10,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb6a620 and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 08:50:10, skipping insertion in model container [2023-05-19 20:50:10,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:50:10" (2/2) ... [2023-05-19 20:50:10,793 INFO L112 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2023-05-19 20:50:10,798 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 20:50:10,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 20:50:10,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 20:50:10,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 20:50:10,867 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-19 20:50:10,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:50:10,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 20:50:10,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:10,910 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) [2023-05-19 20:50:10,914 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 [2023-05-19 20:50:10,946 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 20:50:10,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 20:50:10,970 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;@ba7c85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:50:10,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-19 20:50:11,147 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)] === [2023-05-19 20:50:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash -998038192, now seen corresponding path program 1 times [2023-05-19 20:50:11,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:11,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644224663] [2023-05-19 20:50:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-19 20:50:11,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:11,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644224663] [2023-05-19 20:50:11,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644224663] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 20:50:11,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 20:50:11,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-19 20:50:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921811044] [2023-05-19 20:50:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 20:50:11,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 20:50:11,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 20:50:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 20:50:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:11,346 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:11,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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) [2023-05-19 20:50:11,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:11,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-19 20:50:11,398 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)] === [2023-05-19 20:50:11,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1031168674, now seen corresponding path program 1 times [2023-05-19 20:50:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:11,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305271184] [2023-05-19 20:50:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:11,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:11,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305271184] [2023-05-19 20:50:11,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305271184] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:11,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479381527] [2023-05-19 20:50:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:11,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:11,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:11,766 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) [2023-05-19 20:50:11,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 20:50:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:11,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2023-05-19 20:50:11,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:12,017 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 [2023-05-19 20:50:12,066 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 [2023-05-19 20:50:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-19 20:50:12,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:12,145 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:12,145 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 14 treesize of output 18 [2023-05-19 20:50:12,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:12,211 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 21 treesize of output 25 [2023-05-19 20:50:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-19 20:50:12,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479381527] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:12,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:12,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 11 [2023-05-19 20:50:12,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327972990] [2023-05-19 20:50:12,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-19 20:50:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-19 20:50:12,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-05-19 20:50:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:12,250 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:12,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 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) [2023-05-19 20:50:12,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:12,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:12,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-19 20:50:12,649 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,SelfDestructingSolverStorable1 [2023-05-19 20:50:12,649 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)] === [2023-05-19 20:50:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:12,650 INFO L85 PathProgramCache]: Analyzing trace with hash 808852464, now seen corresponding path program 2 times [2023-05-19 20:50:12,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:12,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042434251] [2023-05-19 20:50:12,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:12,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-19 20:50:12,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042434251] [2023-05-19 20:50:12,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042434251] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452586561] [2023-05-19 20:50:12,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 20:50:12,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:12,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:12,783 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) [2023-05-19 20:50:12,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 20:50:12,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 20:50:12,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:50:12,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-19 20:50:12,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-19 20:50:12,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:13,278 INFO L356 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-05-19 20:50:13,279 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 116 treesize of output 116 [2023-05-19 20:50:13,291 INFO L356 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2023-05-19 20:50:13,294 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 108 treesize of output 106 [2023-05-19 20:50:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-19 20:50:13,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452586561] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:13,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:13,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-05-19 20:50:13,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280858041] [2023-05-19 20:50:13,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:13,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-19 20:50:13,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:13,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-19 20:50:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-05-19 20:50:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:13,403 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:13,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 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) [2023-05-19 20:50:13,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:13,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:13,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:13,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-19 20:50:13,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:13,837 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)] === [2023-05-19 20:50:13,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -680387970, now seen corresponding path program 3 times [2023-05-19 20:50:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:13,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175347844] [2023-05-19 20:50:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:14,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:14,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175347844] [2023-05-19 20:50:14,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175347844] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:14,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109625027] [2023-05-19 20:50:14,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 20:50:14,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:14,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:14,333 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) [2023-05-19 20:50:14,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-19 20:50:14,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-19 20:50:14,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:50:14,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 26 conjunts are in the unsatisfiable core [2023-05-19 20:50:14,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:14,540 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:14,541 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 22 treesize of output 10 [2023-05-19 20:50:14,665 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 15 treesize of output 7 [2023-05-19 20:50:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:14,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:14,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:14,806 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 [2023-05-19 20:50:15,011 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:15,011 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 86 treesize of output 106 [2023-05-19 20:50:15,016 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 [2023-05-19 20:50:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:15,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109625027] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:15,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:15,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 11] total 31 [2023-05-19 20:50:15,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319419226] [2023-05-19 20:50:15,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:15,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-05-19 20:50:15,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-05-19 20:50:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2023-05-19 20:50:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:15,192 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:15,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.53125) internal successors, (145), 31 states have internal predecessors, (145), 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) [2023-05-19 20:50:15,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:15,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:15,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:15,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:16,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-19 20:50:16,609 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 [2023-05-19 20:50:16,609 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)] === [2023-05-19 20:50:16,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:16,610 INFO L85 PathProgramCache]: Analyzing trace with hash 4932949, now seen corresponding path program 4 times [2023-05-19 20:50:16,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:16,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677449572] [2023-05-19 20:50:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:16,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:17,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677449572] [2023-05-19 20:50:17,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677449572] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787917456] [2023-05-19 20:50:17,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 20:50:17,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:17,723 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) [2023-05-19 20:50:17,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-19 20:50:17,783 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 20:50:17,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:50:17,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjunts are in the unsatisfiable core [2023-05-19 20:50:17,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:18,123 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:18,123 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 25 treesize of output 13 [2023-05-19 20:50:18,200 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 [2023-05-19 20:50:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 11 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:18,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:18,298 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:18,298 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 [2023-05-19 20:50:18,661 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 [2023-05-19 20:50:18,685 INFO L356 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2023-05-19 20:50:18,687 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 100 treesize of output 126 [2023-05-19 20:50:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 11 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787917456] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:18,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:18,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 14] total 43 [2023-05-19 20:50:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947776533] [2023-05-19 20:50:18,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:18,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-05-19 20:50:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:18,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-05-19 20:50:18,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1638, Unknown=0, NotChecked=0, Total=1892 [2023-05-19 20:50:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:18,869 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:18,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.727272727272727) internal successors, (164), 43 states have internal predecessors, (164), 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) [2023-05-19 20:50:18,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:18,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:18,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:18,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:18,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-05-19 20:50:21,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-19 20:50:21,350 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 [2023-05-19 20:50:21,351 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)] === [2023-05-19 20:50:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1679989312, now seen corresponding path program 5 times [2023-05-19 20:50:21,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:21,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454667851] [2023-05-19 20:50:21,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 7 proven. 143 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:50:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:22,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454667851] [2023-05-19 20:50:22,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454667851] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:22,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746619276] [2023-05-19 20:50:22,450 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 20:50:22,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:22,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:22,451 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) [2023-05-19 20:50:22,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-19 20:50:22,515 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-05-19 20:50:22,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:50:22,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 36 conjunts are in the unsatisfiable core [2023-05-19 20:50:22,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:23,699 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:23,699 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 185 treesize of output 175 [2023-05-19 20:50:23,704 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:23,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 115 [2023-05-19 20:50:23,766 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 21 treesize of output 17 [2023-05-19 20:50:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:23,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:24,056 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:24,058 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 [2023-05-19 20:50:24,807 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 [2023-05-19 20:50:24,847 INFO L356 Elim1Store]: treesize reduction 24, result has 65.2 percent of original size [2023-05-19 20:50:24,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 10 case distinctions, treesize of input 125 treesize of output 147 [2023-05-19 20:50:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:25,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746619276] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:25,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:25,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21, 19] total 56 [2023-05-19 20:50:25,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195991986] [2023-05-19 20:50:25,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:25,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-05-19 20:50:25,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-05-19 20:50:25,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2983, Unknown=0, NotChecked=0, Total=3192 [2023-05-19 20:50:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:25,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:25,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.807017543859649) internal successors, (217), 56 states have internal predecessors, (217), 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) [2023-05-19 20:50:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:25,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:25,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-05-19 20:50:25,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-19 20:50:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-05-19 20:50:35,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-05-19 20:50:35,525 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 [2023-05-19 20:50:35,526 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)] === [2023-05-19 20:50:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:50:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2059396524, now seen corresponding path program 6 times [2023-05-19 20:50:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:50:35,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847404884] [2023-05-19 20:50:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:50:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:50:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:50:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:36,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:50:36,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847404884] [2023-05-19 20:50:36,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847404884] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:50:36,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485419435] [2023-05-19 20:50:36,706 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-19 20:50:36,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:50:36,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:50:36,708 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) [2023-05-19 20:50:36,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-19 20:50:36,759 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-05-19 20:50:36,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:50:36,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 40 conjunts are in the unsatisfiable core [2023-05-19 20:50:36,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:50:38,492 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 201 treesize of output 191 [2023-05-19 20:50:39,191 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:39,192 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 247 treesize of output 233 [2023-05-19 20:50:39,196 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:39,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 21 case distinctions, treesize of input 233 treesize of output 153 [2023-05-19 20:50:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 13 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:39,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:50:39,825 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:50:39,825 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 [2023-05-19 20:50:41,832 INFO L356 Elim1Store]: treesize reduction 74, result has 41.7 percent of original size [2023-05-19 20:50:41,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 218 treesize of output 222 [2023-05-19 20:50:41,839 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 [2023-05-19 20:50:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:50:42,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485419435] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:50:42,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:50:42,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23, 24] total 67 [2023-05-19 20:50:42,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421278047] [2023-05-19 20:50:42,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:50:42,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2023-05-19 20:50:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:50:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2023-05-19 20:50:42,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=4154, Unknown=0, NotChecked=0, Total=4556 [2023-05-19 20:50:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:50:42,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:50:42,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.3823529411764706) internal successors, (230), 67 states have internal predecessors, (230), 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) [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2023-05-19 20:50:42,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:51:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:51:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 394 states. [2023-05-19 20:51:59,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-19 20:52:00,023 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 [2023-05-19 20:52:00,023 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)] === [2023-05-19 20:52:00,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:52:00,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1811946258, now seen corresponding path program 7 times [2023-05-19 20:52:00,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:52:00,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626278508] [2023-05-19 20:52:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:52:00,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:52:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:52:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 2 proven. 518 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-05-19 20:52:18,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:52:18,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626278508] [2023-05-19 20:52:18,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626278508] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:52:18,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862286540] [2023-05-19 20:52:18,599 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-19 20:52:18,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:52:18,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:52:18,613 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) [2023-05-19 20:52:18,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-19 20:52:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:52:18,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 94 conjunts are in the unsatisfiable core [2023-05-19 20:52:18,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:52:25,740 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:52:25,741 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 253 treesize of output 225 [2023-05-19 20:52:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 214 proven. 351 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-05-19 20:52:27,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:52:47,053 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:52:47,054 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 39 treesize of output 63 [2023-05-19 20:52:50,587 INFO L356 Elim1Store]: treesize reduction 108, result has 52.0 percent of original size [2023-05-19 20:52:50,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 872 treesize of output 740 [2023-05-19 20:52:50,737 INFO L356 Elim1Store]: treesize reduction 284, result has 23.9 percent of original size [2023-05-19 20:52:50,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 new quantified variables, introduced 105 case distinctions, treesize of input 618 treesize of output 540 [2023-05-19 20:53:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 2 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:53:06,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862286540] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:53:06,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:53:06,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 39, 45] total 102 [2023-05-19 20:53:06,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640663427] [2023-05-19 20:53:06,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:53:06,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2023-05-19 20:53:06,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:53:06,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2023-05-19 20:53:06,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2043, Invalid=8463, Unknown=0, NotChecked=0, Total=10506 [2023-05-19 20:53:06,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:53:06,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:53:06,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.1553398058252426) internal successors, (325), 102 states have internal predecessors, (325), 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) [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 394 states. [2023-05-19 20:53:06,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:53:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:53:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:53:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:53:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:53:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:53:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:53:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 414 states. [2023-05-19 20:53:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-19 20:53:27,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-19 20:53:27,461 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 [2023-05-19 20:53:27,464 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)] === [2023-05-19 20:53:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:53:27,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1304795615, now seen corresponding path program 8 times [2023-05-19 20:53:27,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:53:27,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994255298] [2023-05-19 20:53:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:53:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:53:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:53:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 102 proven. 63 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-05-19 20:53:27,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:53:27,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994255298] [2023-05-19 20:53:27,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994255298] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:53:27,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679707440] [2023-05-19 20:53:27,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 20:53:27,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:53:27,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:53:27,589 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) [2023-05-19 20:53:27,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-19 20:53:27,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 20:53:27,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:53:27,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-19 20:53:27,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:53:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 102 proven. 57 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-05-19 20:53:27,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:53:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 102 proven. 57 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-05-19 20:53:27,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679707440] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:53:27,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:53:27,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2023-05-19 20:53:27,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750065411] [2023-05-19 20:53:27,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:53:27,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-19 20:53:27,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:53:27,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-19 20:53:27,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-05-19 20:53:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:53:27,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:53:27,827 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) [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 414 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2023-05-19 20:53:27,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 415 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-05-19 20:53:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 20:53:28,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-19 20:53:28,375 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 [2023-05-19 20:53:28,376 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)] === [2023-05-19 20:53:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:53:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash 729831339, now seen corresponding path program 9 times [2023-05-19 20:53:28,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:53:28,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795213585] [2023-05-19 20:53:28,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:53:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:53:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:53:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 70 proven. 213 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-19 20:53:29,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:53:29,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795213585] [2023-05-19 20:53:29,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795213585] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:53:29,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124812475] [2023-05-19 20:53:29,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 20:53:29,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:53:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:53:29,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 20:53:29,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-19 20:53:29,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-05-19 20:53:29,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:53:29,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 98 conjunts are in the unsatisfiable core [2023-05-19 20:53:29,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:53:37,323 INFO L356 Elim1Store]: treesize reduction 8, result has 90.6 percent of original size [2023-05-19 20:53:37,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 345 [2023-05-19 20:53:42,244 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:53:42,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 10 case distinctions, treesize of input 389 treesize of output 329 [2023-05-19 20:53:42,254 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:53:42,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 329 treesize of output 203 [2023-05-19 20:53:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 10 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:53:42,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:53:54,965 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:54,967 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:54,968 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:54,968 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:54,972 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:54,973 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:53:55,040 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:53:55,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 93 treesize of output 187 [2023-05-19 20:53:59,335 INFO L356 Elim1Store]: treesize reduction 314, result has 34.4 percent of original size [2023-05-19 20:53:59,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 678 treesize of output 744 [2023-05-19 20:53:59,709 INFO L356 Elim1Store]: treesize reduction 98, result has 71.3 percent of original size [2023-05-19 20:53:59,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 new quantified variables, introduced 66 case distinctions, treesize of input 515 treesize of output 601 [2023-05-19 20:57:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:57:44,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124812475] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:57:44,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:57:44,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 41, 42] total 93 [2023-05-19 20:57:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816169224] [2023-05-19 20:57:44,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:57:44,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-05-19 20:57:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:57:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-05-19 20:57:44,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1692, Invalid=7050, Unknown=0, NotChecked=0, Total=8742 [2023-05-19 20:57:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:57:44,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:57:44,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 3.0106382978723403) internal successors, (283), 93 states have internal predecessors, (283), 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) [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 415 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 20:57:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-05-19 21:00:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 465 states. [2023-05-19 21:00:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-05-19 21:00:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 21:00:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2023-05-19 21:00:18,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-19 21:00:18,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-19 21:00:18,985 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 21:00:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 21:00:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash -244095998, now seen corresponding path program 10 times [2023-05-19 21:00:18,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 21:00:18,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660039706] [2023-05-19 21:00:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 21:00:18,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 21:00:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-05-19 21:04:25,373 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 [2023-05-19 21:04:25,373 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 [2023-05-19 21:04:26,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-19 21:04:26,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown