/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 00:20:37,746 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 00:20:37,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 00:20:37,818 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 00:20:37,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 00:20:37,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 00:20:37,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 00:20:37,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 00:20:37,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 00:20:37,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 00:20:37,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 00:20:37,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 00:20:37,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 00:20:37,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 00:20:37,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 00:20:37,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 00:20:37,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 00:20:37,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 00:20:37,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 00:20:37,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 00:20:38,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 00:20:38,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 00:20:38,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 00:20:38,053 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-04 00:20:38,054 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-04 00:20:38,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2023-05-04 00:20:38,056 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2023-05-04 00:20:38,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 00:20:38,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-04 00:20:38,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 00:20:38,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 00:20:38,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 00:20:38,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,115 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-04 00:20:38,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 00:20:38,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 00:20:38,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 00:20:38,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 00:20:38,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 00:20:38,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 00:20:38,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 00:20:38,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 00:20:38,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/1) ... [2023-05-04 00:20:38,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 00:20:38,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:38,181 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) [2023-05-04 00:20:38,186 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 [2023-05-04 00:20:38,227 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-04 00:20:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 00:20:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 00:20:38,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-04 00:20:38,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 00:20:38,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 00:20:38,229 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-04 00:20:38,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 00:20:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 00:20:38,230 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-04 00:20:38,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 00:20:38,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 00:20:38,231 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-05-04 00:20:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-05-04 00:20:38,232 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-05-04 00:20:38,232 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2023-05-04 00:20:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-05-04 00:20:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-05-04 00:20:38,235 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 00:20:38,281 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 00:20:38,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 00:20:38,387 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 00:20:38,392 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 00:20:38,393 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-04 00:20:38,394 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:20:38 BoogieIcfgContainer [2023-05-04 00:20:38,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 00:20:38,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 00:20:38,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 00:20:38,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 00:20:38,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:20:38" (1/2) ... [2023-05-04 00:20:38,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555058db and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:20:38, skipping insertion in model container [2023-05-04 00:20:38,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:20:38" (2/2) ... [2023-05-04 00:20:38,414 INFO L112 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2023-05-04 00:20:38,419 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 00:20:38,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 00:20:38,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 00:20:38,425 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 00:20:38,499 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-05-04 00:20:38,536 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 00:20:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 00:20:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:38,537 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) [2023-05-04 00:20:38,538 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 [2023-05-04 00:20:38,563 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 00:20:38,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 00:20:38,583 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;@5f416b69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 00:20:38,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-05-04 00:20:38,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:38,875 INFO L85 PathProgramCache]: Analyzing trace with hash -870634169, now seen corresponding path program 1 times [2023-05-04 00:20:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:38,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828819277] [2023-05-04 00:20:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 00:20:39,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:39,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828819277] [2023-05-04 00:20:39,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828819277] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:39,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196986582] [2023-05-04 00:20:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:39,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:39,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:39,241 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) [2023-05-04 00:20:39,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 00:20:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:39,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-04 00:20:39,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 00:20:39,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 00:20:39,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196986582] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:39,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:39,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2023-05-04 00:20:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171439257] [2023-05-04 00:20:39,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:39,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 00:20:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 00:20:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-05-04 00:20:39,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:39,521 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:39,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-05-04 00:20:39,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 00:20:39,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 00:20:39,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-04 00:20:39,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:39,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:39,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1119116454, now seen corresponding path program 2 times [2023-05-04 00:20:39,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:39,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400268932] [2023-05-04 00:20:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:39,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 60 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 00:20:40,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:40,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400268932] [2023-05-04 00:20:40,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400268932] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:40,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135169476] [2023-05-04 00:20:40,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 00:20:40,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:40,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:40,213 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) [2023-05-04 00:20:40,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 00:20:40,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 00:20:40,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 00:20:40,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 00:20:40,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 21 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-04 00:20:40,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 21 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-04 00:20:40,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135169476] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:40,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:40,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 9 [2023-05-04 00:20:40,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909072881] [2023-05-04 00:20:40,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:40,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-04 00:20:40,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-04 00:20:40,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-05-04 00:20:40,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:40,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:40,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 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) [2023-05-04 00:20:40,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 00:20:40,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 00:20:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 00:20:40,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 00:20:40,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:40,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:40,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1247802263, now seen corresponding path program 3 times [2023-05-04 00:20:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:40,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080607896] [2023-05-04 00:20:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:40,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 00:20:41,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:41,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080607896] [2023-05-04 00:20:41,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080607896] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:41,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570616621] [2023-05-04 00:20:41,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 00:20:41,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:41,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:41,314 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) [2023-05-04 00:20:41,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 00:20:41,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-05-04 00:20:41,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 00:20:41,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 15 conjunts are in the unsatisfiable core [2023-05-04 00:20:41,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:41,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2023-05-04 00:20:41,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-05-04 00:20:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 00:20:41,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:42,250 INFO L356 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2023-05-04 00:20:42,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 82 [2023-05-04 00:20:42,353 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2023-05-04 00:20:42,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 83 [2023-05-04 00:20:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 00:20:42,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570616621] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:42,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:42,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2023-05-04 00:20:42,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669301645] [2023-05-04 00:20:42,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:42,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-05-04 00:20:42,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-05-04 00:20:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-05-04 00:20:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:42,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:42,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.65) internal successors, (93), 19 states have internal predecessors, (93), 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) [2023-05-04 00:20:42,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 00:20:42,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 00:20:42,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:43,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-05-04 00:20:43,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:43,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash 722936302, now seen corresponding path program 4 times [2023-05-04 00:20:43,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:43,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045663890] [2023-05-04 00:20:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:43,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 00:20:44,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:44,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045663890] [2023-05-04 00:20:44,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045663890] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:44,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547225780] [2023-05-04 00:20:44,045 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 00:20:44,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:44,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:44,047 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) [2023-05-04 00:20:44,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 00:20:44,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 00:20:44,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 00:20:44,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-04 00:20:44,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 00:20:44,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 00:20:44,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547225780] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:44,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:44,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2023-05-04 00:20:44,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745825228] [2023-05-04 00:20:44,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:44,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-04 00:20:44,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-04 00:20:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-05-04 00:20:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:44,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:44,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-05-04 00:20:44,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:44,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:44,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:44,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:20:46,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 00:20:46,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:46,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:46,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:46,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1825698618, now seen corresponding path program 5 times [2023-05-04 00:20:46,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:46,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353015722] [2023-05-04 00:20:46,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:46,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 79 proven. 113 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-05-04 00:20:46,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:46,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353015722] [2023-05-04 00:20:46,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353015722] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:46,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018684751] [2023-05-04 00:20:46,646 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 00:20:46,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:46,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:46,647 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) [2023-05-04 00:20:46,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 00:20:46,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-05-04 00:20:46,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 00:20:46,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 15 conjunts are in the unsatisfiable core [2023-05-04 00:20:46,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 97 proven. 85 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-05-04 00:20:46,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 97 proven. 85 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-05-04 00:20:46,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018684751] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:46,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:46,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2023-05-04 00:20:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128115591] [2023-05-04 00:20:46,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-04 00:20:46,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-04 00:20:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-05-04 00:20:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:46,990 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:46,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 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) [2023-05-04 00:20:46,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:46,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:46,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:46,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:20:46,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:20:49,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 00:20:49,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 00:20:49,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:49,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:20:49,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:20:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash -177009105, now seen corresponding path program 6 times [2023-05-04 00:20:49,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:20:49,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709309565] [2023-05-04 00:20:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:20:49,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:20:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:20:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 73 proven. 152 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-05-04 00:20:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:20:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709309565] [2023-05-04 00:20:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709309565] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 00:20:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457663720] [2023-05-04 00:20:50,046 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 00:20:50,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:20:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 00:20:50,047 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) [2023-05-04 00:20:50,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 00:20:50,111 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-05-04 00:20:50,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 00:20:50,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-04 00:20:50,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 00:20:50,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-04 00:20:50,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-05-04 00:20:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-05-04 00:20:50,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 00:20:50,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-05-04 00:20:50,597 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-05-04 00:20:50,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27 [2023-05-04 00:20:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-05-04 00:20:50,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457663720] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 00:20:50,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 00:20:50,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 5] total 20 [2023-05-04 00:20:50,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541797710] [2023-05-04 00:20:50,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 00:20:50,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-05-04 00:20:50,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:20:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-05-04 00:20:50,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-05-04 00:20:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:20:50,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:20:50,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.619047619047619) internal successors, (160), 20 states have internal predecessors, (160), 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) [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 00:20:50,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:22:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:22:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 00:22:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 00:22:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:22:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 00:22:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2023-05-04 00:22:22,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 00:22:23,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 00:22:23,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-05-04 00:22:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 00:22:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1255405941, now seen corresponding path program 1 times [2023-05-04 00:22:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 00:22:23,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419082473] [2023-05-04 00:22:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 00:22:23,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 00:22:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 00:22:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 00:22:23,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 00:22:23,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419082473] [2023-05-04 00:22:23,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419082473] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 00:22:23,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 00:22:23,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 00:22:23,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963563372] [2023-05-04 00:22:23,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 00:22:23,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 00:22:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 00:22:23,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 00:22:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 00:22:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 00:22:23,056 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 00:22:23,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 241 states. [2023-05-04 00:22:23,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.