/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 '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 14:11:10,076 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 14:11:10,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 14:11:10,178 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 14:11:10,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 14:11:10,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 14:11:10,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 14:11:10,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 14:11:10,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 14:11:10,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 14:11:10,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 14:11:10,180 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 14:11:10,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 14:11:10,181 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 14:11:10,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 14:11:10,182 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 14:11:10,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 14:11:10,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 14:11:10,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 14:11:10,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 14:11:10,183 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 14:11:10,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 14:11:10,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 14:11:10,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 14:11:10,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 14:11:10,184 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 14:11:10,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-19 14:11:10,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 14:11:10,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 14:11:10,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 14:11:10,407 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 14:11:10,408 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 14:11:10,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2023-05-19 14:11:10,409 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2023-05-19 14:11:10,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 14:11:10,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 14:11:10,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 14:11:10,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 14:11:10,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 14:11:10,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,458 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 14:11:10,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 14:11:10,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 14:11:10,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 14:11:10,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 14:11:10,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 14:11:10,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 14:11:10,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 14:11:10,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 14:11:10,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/1) ... [2023-05-19 14:11:10,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 14:11:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:10,510 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 14:11:10,532 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 14:11:10,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 14:11:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 14:11:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 14:11:10,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 14:11:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 14:11:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 14:11:10,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 14:11:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 14:11:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 14:11:10,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-19 14:11:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-19 14:11:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-19 14:11:10,544 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-05-19 14:11:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-05-19 14:11:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-05-19 14:11:10,544 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 14:11:10,582 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 14:11:10,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 14:11:10,662 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 14:11:10,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 14:11:10,677 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 14:11:10,678 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 02:11:10 BoogieIcfgContainer [2023-05-19 14:11:10,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 14:11:10,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 14:11:10,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 14:11:10,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 14:11:10,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 02:11:10" (1/2) ... [2023-05-19 14:11:10,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663f641a and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 02:11:10, skipping insertion in model container [2023-05-19 14:11:10,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 02:11:10" (2/2) ... [2023-05-19 14:11:10,684 INFO L112 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2023-05-19 14:11:10,689 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 14:11:10,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 14:11:10,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 14:11:10,695 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 14:11:10,723 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-05-19 14:11:10,766 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 14:11:10,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 14:11:10,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:10,785 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 14:11:10,786 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 14:11:10,825 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 14:11:10,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 14:11:10,852 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;@5f0c4d72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 14:11:10,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-05-19 14:11:11,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:11,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1406280897, now seen corresponding path program 1 times [2023-05-19 14:11:11,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:11,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001664797] [2023-05-19 14:11:11,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:11,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-19 14:11:11,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:11,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001664797] [2023-05-19 14:11:11,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001664797] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 14:11:11,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 14:11:11,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 14:11:11,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739429803] [2023-05-19 14:11:11,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 14:11:11,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 14:11:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:11,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 14:11:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 14:11:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:11,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 14:11:11,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-19 14:11:11,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash 432731313, now seen corresponding path program 1 times [2023-05-19 14:11:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:11,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016699560] [2023-05-19 14:11:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-19 14:11:11,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016699560] [2023-05-19 14:11:11,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016699560] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 14:11:11,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 14:11:11,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 14:11:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381099448] [2023-05-19 14:11:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 14:11:11,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-19 14:11:11,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:11,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-19 14:11:11,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-19 14:11:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:11,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 14:11:11,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-19 14:11:11,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1149201041, now seen corresponding path program 1 times [2023-05-19 14:11:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:11,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461008614] [2023-05-19 14:11:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:11,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-19 14:11:11,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:11,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461008614] [2023-05-19 14:11:11,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461008614] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 14:11:11,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 14:11:11,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-19 14:11:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001024714] [2023-05-19 14:11:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 14:11:11,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 14:11:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 14:11:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 14:11:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,476 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:11,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 14:11:11,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-19 14:11:11,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:11,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1062949587, now seen corresponding path program 1 times [2023-05-19 14:11:11,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:11,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832683999] [2023-05-19 14:11:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:11,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-05-19 14:11:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:11,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832683999] [2023-05-19 14:11:11,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832683999] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 14:11:11,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 14:11:11,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-19 14:11:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257593764] [2023-05-19 14:11:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 14:11:11,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 14:11:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:11,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 14:11:11,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 14:11:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:11,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 14:11:11,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-19 14:11:11,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash 135116861, now seen corresponding path program 2 times [2023-05-19 14:11:11,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:11,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4619395] [2023-05-19 14:11:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:11,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-19 14:11:11,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:11,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4619395] [2023-05-19 14:11:11,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4619395] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:11,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876952] [2023-05-19 14:11:11,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 14:11:11,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:11,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:11,826 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 14:11:11,827 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 14:11:11,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 14:11:11,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:11,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-19 14:11:11,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-05-19 14:11:11,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-05-19 14:11:11,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876952] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:11,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:11,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 8 [2023-05-19 14:11:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979634532] [2023-05-19 14:11:11,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:11,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-19 14:11:11,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-19 14:11:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-05-19 14:11:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:11,980 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:11,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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 14:11:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 14:11:12,182 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 14:11:12,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:12,380 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1623312623, now seen corresponding path program 3 times [2023-05-19 14:11:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:12,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050883187] [2023-05-19 14:11:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:12,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-19 14:11:12,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:12,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050883187] [2023-05-19 14:11:12,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050883187] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:12,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671011747] [2023-05-19 14:11:12,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 14:11:12,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:12,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:12,494 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 14:11:12,507 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 14:11:12,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-05-19 14:11:12,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:12,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-19 14:11:12,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-19 14:11:12,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-19 14:11:12,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671011747] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:12,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:12,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2023-05-19 14:11:12,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879353844] [2023-05-19 14:11:12,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:12,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-19 14:11:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-19 14:11:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-05-19 14:11:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:12,642 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:12,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 14:11:12,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 14:11:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 14:11:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:12,768 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 14:11:12,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:12,968 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:12,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1345183964, now seen corresponding path program 4 times [2023-05-19 14:11:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:12,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366767538] [2023-05-19 14:11:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-05-19 14:11:13,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:13,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366767538] [2023-05-19 14:11:13,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366767538] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:13,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645363609] [2023-05-19 14:11:13,126 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 14:11:13,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:13,127 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 14:11:13,129 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 14:11:13,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 14:11:13,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:13,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjunts are in the unsatisfiable core [2023-05-19 14:11:13,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-05-19 14:11:13,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-05-19 14:11:13,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645363609] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:13,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:13,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2023-05-19 14:11:13,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842570101] [2023-05-19 14:11:13,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:13,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-19 14:11:13,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:13,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-19 14:11:13,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-05-19 14:11:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:13,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:13,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-05-19 14:11:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:13,554 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 14:11:13,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:13,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:13,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1512304677, now seen corresponding path program 5 times [2023-05-19 14:11:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:13,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238919753] [2023-05-19 14:11:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:13,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 53 proven. 112 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-19 14:11:13,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:13,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238919753] [2023-05-19 14:11:13,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238919753] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:13,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921061256] [2023-05-19 14:11:13,922 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 14:11:13,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:13,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:13,923 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 14:11:13,940 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 14:11:13,975 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-05-19 14:11:13,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:13,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-19 14:11:13,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:14,409 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 15 proven. 158 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 14:11:14,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 157 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 14:11:14,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921061256] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:14,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:14,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 31 [2023-05-19 14:11:14,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807825878] [2023-05-19 14:11:14,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:14,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-05-19 14:11:14,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:14,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-05-19 14:11:14,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=785, Unknown=0, NotChecked=0, Total=992 [2023-05-19 14:11:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:14,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:14,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.625) internal successors, (180), 31 states have internal predecessors, (180), 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 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:14,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-05-19 14:11:16,076 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 14:11:16,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:16,257 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:16,257 INFO L85 PathProgramCache]: Analyzing trace with hash -78687705, now seen corresponding path program 6 times [2023-05-19 14:11:16,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:16,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080041137] [2023-05-19 14:11:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:16,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 1196 proven. 436 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-05-19 14:11:18,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:18,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080041137] [2023-05-19 14:11:18,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080041137] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:18,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512546302] [2023-05-19 14:11:18,327 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-19 14:11:18,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:18,328 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 14:11:18,357 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 14:11:18,436 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2023-05-19 14:11:18,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:18,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 45 conjunts are in the unsatisfiable core [2023-05-19 14:11:18,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 1476 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-05-19 14:11:18,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 1476 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-05-19 14:11:19,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512546302] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:19,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:19,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 9, 9] total 42 [2023-05-19 14:11:19,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789107753] [2023-05-19 14:11:19,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:19,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-05-19 14:11:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-05-19 14:11:19,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1414, Unknown=0, NotChecked=0, Total=1806 [2023-05-19 14:11:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:19,436 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:19,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.627906976744186) internal successors, (285), 42 states have internal predecessors, (285), 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 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2023-05-19 14:11:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:11:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-05-19 14:11:22,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-19 14:11:22,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:22,618 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -25596232, now seen corresponding path program 7 times [2023-05-19 14:11:22,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:22,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138920451] [2023-05-19 14:11:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 3197 proven. 407 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-05-19 14:11:23,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:23,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138920451] [2023-05-19 14:11:23,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138920451] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:23,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74193889] [2023-05-19 14:11:23,612 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-19 14:11:23,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:23,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:23,613 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 14:11:23,647 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 14:11:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:23,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 59 conjunts are in the unsatisfiable core [2023-05-19 14:11:23,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 3271 proven. 332 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2023-05-19 14:11:23,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 3271 proven. 332 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2023-05-19 14:11:24,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74193889] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:24,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:24,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2023-05-19 14:11:24,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866021815] [2023-05-19 14:11:24,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:24,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-19 14:11:24,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:24,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-19 14:11:24,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-05-19 14:11:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:24,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 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 14:11:24,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:24,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:24,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2023-05-19 14:11:24,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-05-19 14:11:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:11:25,911 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 14:11:26,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:26,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:26,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash 159659089, now seen corresponding path program 8 times [2023-05-19 14:11:26,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:26,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322552505] [2023-05-19 14:11:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:26,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:11:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 2158 proven. 2104 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-05-19 14:11:27,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:11:27,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322552505] [2023-05-19 14:11:27,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322552505] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:11:27,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977174607] [2023-05-19 14:11:27,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 14:11:27,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:11:27,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:11:27,500 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 14:11:27,528 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 14:11:27,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 14:11:27,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:11:27,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 63 conjunts are in the unsatisfiable core [2023-05-19 14:11:27,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:11:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 57 proven. 4261 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-19 14:11:30,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:11:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4323 backedges. 58 proven. 4260 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-19 14:11:32,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977174607] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:11:32,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:11:32,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 61, 61] total 138 [2023-05-19 14:11:32,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274197312] [2023-05-19 14:11:32,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:11:32,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2023-05-19 14:11:32,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:11:32,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2023-05-19 14:11:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2878, Invalid=16304, Unknown=0, NotChecked=0, Total=19182 [2023-05-19 14:11:32,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:32,090 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:11:32,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 5.611510791366906) internal successors, (780), 138 states have internal predecessors, (780), 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 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:11:32,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:11:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2023-05-19 14:11:46,387 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 14:11:46,577 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,SelfDestructingSolverStorable10 [2023-05-19 14:11:46,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:11:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:11:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2044147467, now seen corresponding path program 9 times [2023-05-19 14:11:46,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:11:46,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371060907] [2023-05-19 14:11:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:11:46,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:11:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:12:05,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15815 backedges. 12069 proven. 3487 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-05-19 14:12:05,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:12:05,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371060907] [2023-05-19 14:12:05,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371060907] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:12:05,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746056621] [2023-05-19 14:12:05,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 14:12:05,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:12:05,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:12:05,091 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 14:12:05,128 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 14:12:05,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-05-19 14:12:05,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:12:05,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 24 conjunts are in the unsatisfiable core [2023-05-19 14:12:05,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:12:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15815 backedges. 5862 proven. 3 refuted. 0 times theorem prover too weak. 9950 trivial. 0 not checked. [2023-05-19 14:12:05,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:12:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15815 backedges. 5862 proven. 3 refuted. 0 times theorem prover too weak. 9950 trivial. 0 not checked. [2023-05-19 14:12:06,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746056621] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:12:06,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:12:06,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 22, 22] total 111 [2023-05-19 14:12:06,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239007946] [2023-05-19 14:12:06,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:12:06,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2023-05-19 14:12:06,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:12:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2023-05-19 14:12:06,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2605, Invalid=9605, Unknown=0, NotChecked=0, Total=12210 [2023-05-19 14:12:06,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:12:06,706 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:12:06,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 5.72972972972973) internal successors, (636), 111 states have internal predecessors, (636), 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 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2023-05-19 14:12:06,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:13:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2023-05-19 14:13:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1066 states. [2023-05-19 14:13:21,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-05-19 14:13:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:13:22,183 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:13:22,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:13:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1370813153, now seen corresponding path program 10 times [2023-05-19 14:13:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:13:22,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089342954] [2023-05-19 14:13:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:13:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:13:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:13:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32038 backedges. 25801 proven. 609 refuted. 0 times theorem prover too weak. 5628 trivial. 0 not checked. [2023-05-19 14:13:29,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:13:29,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089342954] [2023-05-19 14:13:29,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089342954] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:13:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308765516] [2023-05-19 14:13:29,520 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 14:13:29,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:13:29,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:13:29,521 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 14:13:29,560 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 14:13:29,780 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 14:13:29,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:13:29,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 142 conjunts are in the unsatisfiable core [2023-05-19 14:13:29,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:13:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32038 backedges. 25993 proven. 416 refuted. 0 times theorem prover too weak. 5629 trivial. 0 not checked. [2023-05-19 14:13:30,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:13:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 32038 backedges. 25993 proven. 416 refuted. 0 times theorem prover too weak. 5629 trivial. 0 not checked. [2023-05-19 14:13:31,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308765516] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:13:31,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:13:31,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 34 [2023-05-19 14:13:31,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396987224] [2023-05-19 14:13:31,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:13:31,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-05-19 14:13:31,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:13:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-05-19 14:13:31,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=615, Unknown=0, NotChecked=0, Total=1190 [2023-05-19 14:13:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:13:31,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:13:31,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.885714285714286) internal successors, (346), 34 states have internal predecessors, (346), 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 14:13:31,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:31,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:13:31,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1066 states. [2023-05-19 14:13:31,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:13:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 252 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1073 states. [2023-05-19 14:13:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-19 14:13:35,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-05-19 14:13:35,801 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,SelfDestructingSolverStorable12 [2023-05-19 14:13:35,801 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-05-19 14:13:35,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 14:13:35,801 INFO L85 PathProgramCache]: Analyzing trace with hash -34668629, now seen corresponding path program 11 times [2023-05-19 14:13:35,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 14:13:35,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214092522] [2023-05-19 14:13:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 14:13:35,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 14:13:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 14:13:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 29573 backedges. 15657 proven. 13751 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-05-19 14:13:45,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 14:13:45,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214092522] [2023-05-19 14:13:45,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214092522] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 14:13:45,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411863628] [2023-05-19 14:13:45,122 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 14:13:45,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 14:13:45,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 14:13:45,123 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 14:13:45,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-19 14:13:47,701 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 70 check-sat command(s) [2023-05-19 14:13:47,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 14:13:47,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 158 conjunts are in the unsatisfiable core [2023-05-19 14:13:47,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 14:13:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 29573 backedges. 229 proven. 29331 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-19 14:13:58,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 14:14:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 29573 backedges. 230 proven. 29330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-19 14:14:07,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411863628] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 14:14:07,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 14:14:07,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 156, 156] total 353 [2023-05-19 14:14:07,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307109563] [2023-05-19 14:14:07,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 14:14:07,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 354 states [2023-05-19 14:14:07,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 14:14:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 354 interpolants. [2023-05-19 14:14:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16794, Invalid=108168, Unknown=0, NotChecked=0, Total=124962 [2023-05-19 14:14:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 14:14:07,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 14:14:07,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 354 states, 354 states have (on average 5.528248587570621) internal successors, (1957), 353 states have internal predecessors, (1957), 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 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2023-05-19 14:14:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2023-05-19 14:14:07,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-19 14:14:07,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 252 states. [2023-05-19 14:14:07,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1073 states. [2023-05-19 14:14:07,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-19 14:14:07,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.