/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-03 22:30:56,831 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-03 22:30:56,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-03 22:30:56,925 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-03 22:30:56,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-03 22:30:56,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-03 22:30:56,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-03 22:30:56,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-03 22:30:56,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-03 22:30:56,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-03 22:30:56,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-03 22:30:56,928 INFO L138 SettingsManager]: * Use SBE=true [2023-05-03 22:30:56,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-03 22:30:56,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-03 22:30:56,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-03 22:30:56,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 22:30:56,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-03 22:30:56,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-03 22:30:56,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-03 22:30:56,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-03 22:30:56,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-03 22:30:56,932 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-03 22:30:56,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-03 22:30:57,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-03 22:30:57,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-03 22:30:57,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-03 22:30:57,195 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-03 22:30:57,196 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-03 22:30:57,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2023-05-03 22:30:57,198 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2023-05-03 22:30:57,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-03 22:30:57,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-03 22:30:57,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-03 22:30:57,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-03 22:30:57,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-03 22:30:57,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,249 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-03 22:30:57,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-03 22:30:57,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-03 22:30:57,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-03 22:30:57,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-03 22:30:57,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-03 22:30:57,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-03 22:30:57,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-03 22:30:57,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-03 22:30:57,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/1) ... [2023-05-03 22:30:57,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 22:30:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:30:57,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-03 22:30:57,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-03 22:30:57,361 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-03 22:30:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-03 22:30:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-03 22:30:57,361 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-03 22:30:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-03 22:30:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-03 22:30:57,362 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-03 22:30:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-03 22:30:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-03 22:30:57,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-03 22:30:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-03 22:30:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-03 22:30:57,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-05-03 22:30:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-05-03 22:30:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-05-03 22:30:57,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-03 22:30:57,409 INFO L235 CfgBuilder]: Building ICFG [2023-05-03 22:30:57,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-03 22:30:57,534 INFO L276 CfgBuilder]: Performing block encoding [2023-05-03 22:30:57,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-03 22:30:57,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-03 22:30:57,542 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:30:57 BoogieIcfgContainer [2023-05-03 22:30:57,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-03 22:30:57,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-03 22:30:57,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-03 22:30:57,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-03 22:30:57,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:30:57" (1/2) ... [2023-05-03 22:30:57,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108917d6 and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:30:57, skipping insertion in model container [2023-05-03 22:30:57,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:30:57" (2/2) ... [2023-05-03 22:30:57,550 INFO L112 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2023-05-03 22:30:57,570 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-03 22:30:57,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-03 22:30:57,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-03 22:30:57,591 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-03 22:30:57,685 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-05-03 22:30:57,723 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 22:30:57,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-03 22:30:57,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:30:57,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-03 22:30:57,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-03 22:30:57,763 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-03 22:30:57,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-03 22:30:57,785 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;@513759cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 22:30:57,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-05-03 22:30:58,056 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)] === [2023-05-03 22:30:58,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:30:58,063 INFO L85 PathProgramCache]: Analyzing trace with hash 437683422, now seen corresponding path program 1 times [2023-05-03 22:30:58,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:30:58,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459225243] [2023-05-03 22:30:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:30:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:30:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:30:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-05-03 22:30:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:30:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459225243] [2023-05-03 22:30:58,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459225243] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 22:30:58,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-03 22:30:58,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-03 22:30:58,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202021057] [2023-05-03 22:30:58,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 22:30:58,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-03 22:30:58,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 22:30:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-03 22:30:58,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-03 22:30:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:30:58,391 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 22:30:58,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 22:30:58,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:30:58,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:30:58,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-03 22:30:58,453 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)] === [2023-05-03 22:30:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:30:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash -963830643, now seen corresponding path program 1 times [2023-05-03 22:30:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:30:58,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404246120] [2023-05-03 22:30:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:30:58,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:30:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:30:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:30:58,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:30:58,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404246120] [2023-05-03 22:30:58,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404246120] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 22:30:58,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441781267] [2023-05-03 22:30:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:30:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:30:58,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:30:58,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 22:30:58,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-03 22:30:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:30:58,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-03 22:30:58,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 22:30:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:30:59,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 22:30:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:30:59,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441781267] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 22:30:59,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 22:30:59,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 24 [2023-05-03 22:30:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458846006] [2023-05-03 22:30:59,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 22:30:59,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 22:30:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 22:30:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 22:30:59,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2023-05-03 22:30:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:30:59,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 22:30:59,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 22:30:59,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:30:59,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:31:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-03 22:31:00,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-03 22:31:00,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-05-03 22:31:00,514 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)] === [2023-05-03 22:31:00,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:31:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1315254322, now seen corresponding path program 2 times [2023-05-03 22:31:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:31:00,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179226789] [2023-05-03 22:31:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:31:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:31:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:31:00,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 22:31:00,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:31:00,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179226789] [2023-05-03 22:31:00,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179226789] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 22:31:00,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671588904] [2023-05-03 22:31:00,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 22:31:00,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:00,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:31:00,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 22:31:00,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-03 22:31:00,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 22:31:00,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 22:31:00,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2023-05-03 22:31:00,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 22:31:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:31:03,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 22:31:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 22:31:03,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671588904] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 22:31:03,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 22:31:03,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 9] total 16 [2023-05-03 22:31:03,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939480830] [2023-05-03 22:31:03,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 22:31:03,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-03 22:31:03,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 22:31:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-03 22:31:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-05-03 22:31:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:03,443 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 22:31:03,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 22:31:03,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:31:03,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-03 22:31:03,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:31:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-03 22:31:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 22:31:06,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-03 22:31:06,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:06,497 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)] === [2023-05-03 22:31:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:31:06,498 INFO L85 PathProgramCache]: Analyzing trace with hash -861867401, now seen corresponding path program 3 times [2023-05-03 22:31:06,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:31:06,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761281481] [2023-05-03 22:31:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:31:06,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:31:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:31:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:31:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:31:06,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761281481] [2023-05-03 22:31:06,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761281481] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 22:31:06,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735522467] [2023-05-03 22:31:06,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 22:31:06,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:31:06,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 22:31:06,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-03 22:31:06,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-05-03 22:31:06,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 22:31:06,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-03 22:31:06,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 22:31:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:31:07,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 22:31:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 22:31:07,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735522467] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 22:31:07,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 22:31:07,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 24 [2023-05-03 22:31:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305386346] [2023-05-03 22:31:07,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 22:31:07,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 22:31:07,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 22:31:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 22:31:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2023-05-03 22:31:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:07,290 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 22:31:07,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 22:31:07,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 22:31:07,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-03 22:31:07,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-03 22:31:07,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 22:31:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-03 22:31:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 22:31:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-03 22:31:09,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-03 22:31:09,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:09,577 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)] === [2023-05-03 22:31:09,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:31:09,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1204827409, now seen corresponding path program 1 times [2023-05-03 22:31:09,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:31:09,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282979202] [2023-05-03 22:31:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:31:09,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:31:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:31:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-05-03 22:31:09,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:31:09,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282979202] [2023-05-03 22:31:09,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282979202] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 22:31:09,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702453218] [2023-05-03 22:31:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:31:09,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:09,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:31:09,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 22:31:09,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-03 22:31:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:31:09,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-03 22:31:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 22:31:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-05-03 22:31:10,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 22:31:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-05-03 22:31:10,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702453218] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 22:31:10,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 22:31:10,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 24 [2023-05-03 22:31:10,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145181530] [2023-05-03 22:31:10,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 22:31:10,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 22:31:10,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 22:31:10,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 22:31:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2023-05-03 22:31:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:10,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 22:31:10,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 24 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 22:31:10,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 22:31:10,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-03 22:31:10,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-03 22:31:10,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-03 22:31:10,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 22:31:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 22:31:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-03 22:31:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 22:31:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-03 22:31:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-03 22:31:11,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-03 22:31:11,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:11,222 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)] === [2023-05-03 22:31:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 22:31:11,222 INFO L85 PathProgramCache]: Analyzing trace with hash -633683968, now seen corresponding path program 2 times [2023-05-03 22:31:11,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 22:31:11,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539949842] [2023-05-03 22:31:11,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 22:31:11,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 22:31:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 22:31:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-05-03 22:31:11,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 22:31:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539949842] [2023-05-03 22:31:11,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539949842] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 22:31:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793156402] [2023-05-03 22:31:11,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 22:31:11,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 22:31:11,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 22:31:11,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 22:31:11,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-03 22:31:12,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 22:31:12,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 22:31:12,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 89 conjunts are in the unsatisfiable core [2023-05-03 22:31:12,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 22:35:56,675 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification that was a NOOP. DAG size: 139 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 22:36:37,869 WARN L233 SmtUtils]: Spent 7.21s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 22:37:22,276 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-05-03 22:45:31,187 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 22:45:31,187 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 22:45:31,213 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 22:45:32,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-05-03 22:45:32,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-03 22:45:32,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown