/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 00:56:57,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 00:56:57,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 00:56:57,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 00:56:57,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 00:56:57,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 00:56:57,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 00:56:57,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-16 00:56:57,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 00:56:57,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 00:56:57,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 00:56:57,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 00:56:57,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 00:56:57,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 00:56:57,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 00:56:57,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 00:56:57,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 00:56:57,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 00:56:57,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 00:56:57,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 00:56:57,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 00:56:57,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 00:56:57,946 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 00:56:57,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 00:56:57,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 00:56:57,952 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-16 00:56:57,952 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-16 00:56:57,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 00:56:58,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 00:56:58,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 00:56:58,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 00:56:58,135 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 00:56:58,135 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 00:56:58,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2022-02-16 00:56:58,137 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2022-02-16 00:56:58,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 00:56:58,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 00:56:58,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 00:56:58,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 00:56:58,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 00:56:58,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,177 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 00:56:58,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 00:56:58,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 00:56:58,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 00:56:58,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 00:56:58,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 00:56:58,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 00:56:58,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 00:56:58,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 00:56:58,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/1) ... [2022-02-16 00:56:58,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 00:56:58,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:56:58,225 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) [2022-02-16 00:56:58,247 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 [2022-02-16 00:56:58,256 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 00:56:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 00:56:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 00:56:58,257 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 00:56:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 00:56:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 00:56:58,257 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 00:56:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 00:56:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 00:56:58,258 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 00:56:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 00:56:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 00:56:58,259 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-16 00:56:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-16 00:56:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-16 00:56:58,261 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 00:56:58,294 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 00:56:58,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 00:56:58,409 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 00:56:58,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 00:56:58,418 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 00:56:58,419 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:56:58 BoogieIcfgContainer [2022-02-16 00:56:58,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 00:56:58,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 00:56:58,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 00:56:58,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 00:56:58,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 12:56:58" (1/2) ... [2022-02-16 00:56:58,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ce53f2 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:56:58, skipping insertion in model container [2022-02-16 00:56:58,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:56:58" (2/2) ... [2022-02-16 00:56:58,435 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2022-02-16 00:56:58,438 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 00:56:58,439 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 00:56:58,439 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 00:56:58,439 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 00:56:58,488 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-16 00:56:58,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 00:56:58,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:56:58,521 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) [2022-02-16 00:56:58,522 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 [2022-02-16 00:56:58,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-16 00:56:58,550 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-16 00:56:58,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-16 00:56:58,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 00:56:58,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:56:58,701 INFO L85 PathProgramCache]: Analyzing trace with hash 680181619, now seen corresponding path program 1 times [2022-02-16 00:56:58,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:56:58,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032623195] [2022-02-16 00:56:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:56:58,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:56:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:56:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:56:58,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:56:58,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032623195] [2022-02-16 00:56:58,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032623195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 00:56:58,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 00:56:58,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 00:56:58,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238507886] [2022-02-16 00:56:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 00:56:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 00:56:58,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 00:56:58,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 00:56:58,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 00:56:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:56:58,871 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 00:56:58,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-02-16 00:56:58,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:56:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:56:58,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 00:56:58,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 00:56:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:56:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2002727682, now seen corresponding path program 1 times [2022-02-16 00:56:58,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:56:58,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812815651] [2022-02-16 00:56:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:56:58,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:56:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:56:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:56:59,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:56:59,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812815651] [2022-02-16 00:56:59,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812815651] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 00:56:59,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663117147] [2022-02-16 00:56:59,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:56:59,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:56:59,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:56:59,025 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) [2022-02-16 00:56:59,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 00:56:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:56:59,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-16 00:56:59,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 00:56:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:56:59,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 00:56:59,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:56:59,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663117147] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 00:56:59,250 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 00:56:59,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 5 [2022-02-16 00:56:59,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026127979] [2022-02-16 00:56:59,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 00:56:59,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 00:56:59,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 00:56:59,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 00:56:59,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-16 00:56:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:56:59,253 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 00:56:59,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 00:56:59,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:56:59,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:56:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:56:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 00:56:59,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 00:56:59,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-02-16 00:56:59,568 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 00:56:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:56:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1276325418, now seen corresponding path program 1 times [2022-02-16 00:56:59,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:56:59,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771700618] [2022-02-16 00:56:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:56:59,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:56:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:56:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:56:59,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:56:59,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771700618] [2022-02-16 00:56:59,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771700618] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 00:56:59,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629244882] [2022-02-16 00:56:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:56:59,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:56:59,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:56:59,767 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) [2022-02-16 00:56:59,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 00:56:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:56:59,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-16 00:56:59,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 00:57:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:00,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 00:57:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:00,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629244882] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 00:57:00,703 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 00:57:00,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 10 [2022-02-16 00:57:00,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623434438] [2022-02-16 00:57:00,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 00:57:00,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-16 00:57:00,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 00:57:00,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-16 00:57:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-16 00:57:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:57:00,716 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 00:57:00,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 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) [2022-02-16 00:57:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:57:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 00:57:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:57:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:57:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 00:57:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 00:57:00,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 00:57:01,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:57:01,137 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 00:57:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:57:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -440160863, now seen corresponding path program 2 times [2022-02-16 00:57:01,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:57:01,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729783598] [2022-02-16 00:57:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:57:01,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:57:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:57:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:01,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:57:01,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729783598] [2022-02-16 00:57:01,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729783598] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 00:57:01,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131536010] [2022-02-16 00:57:01,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 00:57:01,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:57:01,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:57:01,236 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) [2022-02-16 00:57:01,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 00:57:01,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 00:57:01,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 00:57:01,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-16 00:57:01,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 00:57:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:01,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 00:57:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:01,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131536010] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 00:57:01,590 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 00:57:01,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 16 [2022-02-16 00:57:01,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927620424] [2022-02-16 00:57:01,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 00:57:01,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-16 00:57:01,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 00:57:01,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-16 00:57:01,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-02-16 00:57:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:57:01,592 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 00:57:01,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 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) [2022-02-16 00:57:01,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:57:01,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 00:57:01,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-16 00:57:01,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:57:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 00:57:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 00:57:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 00:57:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 00:57:02,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 00:57:02,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:57:02,375 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 00:57:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:57:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1883513069, now seen corresponding path program 3 times [2022-02-16 00:57:02,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:57:02,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819831490] [2022-02-16 00:57:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:57:02,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:57:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:57:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:57:02,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:57:02,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819831490] [2022-02-16 00:57:02,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819831490] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 00:57:02,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563694415] [2022-02-16 00:57:02,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 00:57:02,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 00:57:02,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:57:02,567 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) [2022-02-16 00:57:02,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 00:57:02,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-16 00:57:02,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 00:57:02,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-16 00:57:02,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-16 01:11:43,236 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 01:11:43,236 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 [2022-02-16 01:11:43,236 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 [2022-02-16 01:11:44,272 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 [2022-02-16 01:11:44,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-16 01:11:44,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-16 01:11:45,722 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-16 01:11:45,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 01:11:45,723 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2022-02-16 01:11:45,724 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-16 01:11:45,724 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-16 01:11:45,724 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-16 01:11:45,724 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-16 01:11:45,729 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-02-16 01:11:45,730 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 01:11:45,731 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 01:11:45,732 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 01:11:45 BasicIcfg [2022-02-16 01:11:45,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 01:11:45,733 INFO L158 Benchmark]: Toolchain (without parser) took 887577.71ms. Allocated memory was 196.1MB in the beginning and 626.0MB in the end (delta: 429.9MB). Free memory was 161.6MB in the beginning and 307.1MB in the end (delta: -145.4MB). Peak memory consumption was 456.2MB. Max. memory is 8.0GB. [2022-02-16 01:11:45,733 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 162.9MB in the beginning and 162.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 01:11:45,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.48ms. Allocated memory is still 196.1MB. Free memory was 161.6MB in the beginning and 160.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-16 01:11:45,733 INFO L158 Benchmark]: Boogie Preprocessor took 18.10ms. Allocated memory is still 196.1MB. Free memory was 160.1MB in the beginning and 159.2MB in the end (delta: 899.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 01:11:45,734 INFO L158 Benchmark]: RCFGBuilder took 220.25ms. Allocated memory is still 196.1MB. Free memory was 159.0MB in the beginning and 149.5MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 01:11:45,734 INFO L158 Benchmark]: TraceAbstraction took 887312.37ms. Allocated memory was 196.1MB in the beginning and 626.0MB in the end (delta: 429.9MB). Free memory was 149.1MB in the beginning and 307.1MB in the end (delta: -158.0MB). Peak memory consumption was 442.5MB. Max. memory is 8.0GB. [2022-02-16 01:11:45,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 162.9MB in the beginning and 162.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.48ms. Allocated memory is still 196.1MB. Free memory was 161.6MB in the beginning and 160.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.10ms. Allocated memory is still 196.1MB. Free memory was 160.1MB in the beginning and 159.2MB in the end (delta: 899.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 220.25ms. Allocated memory is still 196.1MB. Free memory was 159.0MB in the beginning and 149.5MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 887312.37ms. Allocated memory was 196.1MB in the beginning and 626.0MB in the end (delta: 429.9MB). Free memory was 149.1MB in the beginning and 307.1MB in the end (delta: -158.0MB). Peak memory consumption was 442.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3233, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 316, negative conditional: 316, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1016, positive unconditional: 1901, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1004, positive unconditional: 1913, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1004, positive unconditional: 1913, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 981, positive: 981, positive conditional: 0, positive unconditional: 981, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 981, positive: 978, positive conditional: 0, positive unconditional: 978, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2917, positive: 1936, positive conditional: 1004, positive unconditional: 932, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 981, unknown conditional: 0, unknown unconditional: 981] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 981, Positive conditional cache size: 0, Positive unconditional cache size: 981, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 0, Independence queries for same thread: 316 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 35, Number of trivial persistent sets: 11, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1069, positive: 1069, positive conditional: 0, positive unconditional: 1069, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3233, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 316, negative conditional: 316, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1848, positive unconditional: 1069, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1016, positive unconditional: 1901, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1004, positive unconditional: 1913, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2917, positive: 2917, positive conditional: 1004, positive unconditional: 1913, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 981, positive: 981, positive conditional: 0, positive unconditional: 981, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 981, positive: 978, positive conditional: 0, positive unconditional: 978, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2917, positive: 1936, positive conditional: 1004, positive unconditional: 932, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 981, unknown conditional: 0, unknown unconditional: 981] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 981, Positive conditional cache size: 0, Positive unconditional cache size: 981, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 0, Independence queries for same thread: 316 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 40 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 887.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 2449 SizeOfPredicates, 10 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown