/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:11:42,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:11:42,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:11:42,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:11:42,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:11:42,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:11:42,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:11:42,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:11:42,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:11:42,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:11:42,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:11:42,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:11:42,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:11:42,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:11:42,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:11:42,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:11:42,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:11:42,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:11:42,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:11:42,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:11:42,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:11:42,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:11:42,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:11:42,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:11:42,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:11:42,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:11:42,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:11:42,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:11:42,619 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-MCRwithoutDepranks-Lazy.epf [2022-03-02 10:11:42,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:11:42,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:11:42,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:11:42,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:11:42,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:11:42,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:11:42,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:11:42,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:11:42,644 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:11:42,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:11:42,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:11:42,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:11:42,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:11:42,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:11:42,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:11:42,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:11:42,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:11:42,647 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:11:42,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:11:42,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:11:42,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:11:42,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:11:42,836 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:11:42,837 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:11:42,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2022-03-02 10:11:42,838 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2022-03-02 10:11:42,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:11:42,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:11:42,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:11:42,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:11:42,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:11:42,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,879 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:11:42,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:11:42,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:11:42,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:11:42,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:11:42,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:11:42,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:11:42,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:11:42,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:11:42,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/1) ... [2022-03-02 10:11:42,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:11:42,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:11:42,912 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) [2022-03-02 10:11:42,917 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 [2022-03-02 10:11:42,938 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:11:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:11:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:11:42,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:11:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:11:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:11:42,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:11:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:11:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:11:42,940 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:11:42,980 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:11:42,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:11:43,049 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:11:43,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:11:43,060 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:11:43,067 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:11:43 BoogieIcfgContainer [2022-03-02 10:11:43,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:11:43,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:11:43,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:11:43,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:11:43,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:11:42" (1/2) ... [2022-03-02 10:11:43,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f363de and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:11:43, skipping insertion in model container [2022-03-02 10:11:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:11:43" (2/2) ... [2022-03-02 10:11:43,086 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2022-03-02 10:11:43,089 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:11:43,089 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:11:43,089 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:11:43,089 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:11:43,123 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 10:11:43,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:11:43,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:11:43,152 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) [2022-03-02 10:11:43,162 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 [2022-03-02 10:11:43,204 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:11:43,208 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 10:11:43,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 10:11:43,309 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 123 transitions and produced 110 states. [2022-03-02 10:11:43,311 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:11:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:11:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2109007159, now seen corresponding path program 1 times [2022-03-02 10:11:43,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:11:43,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826785249] [2022-03-02 10:11:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:11:43,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:11:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:11:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 121 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 10:11:44,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:11:44,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826785249] [2022-03-02 10:11:44,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826785249] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:11:44,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711172893] [2022-03-02 10:11:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:11:44,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:11:44,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:11:44,270 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) [2022-03-02 10:11:44,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:11:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:11:44,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-02 10:11:44,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:11:45,311 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:11:45,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:11:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 2 proven. 167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:11:46,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711172893] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:11:46,342 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:11:46,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25, 23] total 62 [2022-03-02 10:11:46,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812794266] [2022-03-02 10:11:46,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:11:46,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-03-02 10:11:46,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:11:46,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-03-02 10:11:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=698, Invalid=3208, Unknown=0, NotChecked=0, Total=3906 [2022-03-02 10:11:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:11:46,364 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:11:46,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.111111111111111) internal successors, (133), 62 states have internal predecessors, (133), 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) [2022-03-02 10:11:46,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:11:50,172 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 494 transitions and produced 418 states. [2022-03-02 10:11:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 10:11:50,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:11:50,384 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,SelfDestructingSolverStorable0 [2022-03-02 10:11:50,384 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:11:50,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:11:50,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1786839363, now seen corresponding path program 2 times [2022-03-02 10:11:50,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:11:50,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589459843] [2022-03-02 10:11:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:11:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:11:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:11:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 324 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 10:11:50,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:11:50,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589459843] [2022-03-02 10:11:50,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589459843] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:11:50,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685949980] [2022-03-02 10:11:50,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:11:50,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:11:50,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:11:50,913 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) [2022-03-02 10:11:50,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:11:50,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:11:50,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:11:50,948 WARN L261 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-02 10:11:50,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:11:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:11:52,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:11:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:11:53,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685949980] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:11:53,504 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:11:53,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 31, 29] total 80 [2022-03-02 10:11:53,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163641994] [2022-03-02 10:11:53,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:11:53,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-03-02 10:11:53,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:11:53,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-03-02 10:11:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1556, Invalid=4924, Unknown=0, NotChecked=0, Total=6480 [2022-03-02 10:11:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:11:53,508 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:11:53,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.0864197530864197) internal successors, (169), 80 states have internal predecessors, (169), 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) [2022-03-02 10:11:53,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 10:11:53,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:00,263 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2794 transitions and produced 2192 states. [2022-03-02 10:12:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:00,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:00,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:12:00,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:00,465 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:12:00,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:12:00,465 INFO L85 PathProgramCache]: Analyzing trace with hash 567723547, now seen corresponding path program 3 times [2022-03-02 10:12:00,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:12:00,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284650591] [2022-03-02 10:12:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:12:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:12:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:12:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 844 proven. 127 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 10:12:01,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:12:01,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284650591] [2022-03-02 10:12:01,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284650591] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:12:01,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109444765] [2022-03-02 10:12:01,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:12:01,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:12:01,205 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) [2022-03-02 10:12:01,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:12:01,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-03-02 10:12:01,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:12:01,266 WARN L261 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 149 conjunts are in the unsatisfiable core [2022-03-02 10:12:01,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:12:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 977 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:12:03,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:12:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 977 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:12:05,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109444765] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:12:05,013 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:12:05,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 43, 39] total 112 [2022-03-02 10:12:05,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133893866] [2022-03-02 10:12:05,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:12:05,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-03-02 10:12:05,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:12:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-03-02 10:12:05,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3439, Invalid=9217, Unknown=0, NotChecked=0, Total=12656 [2022-03-02 10:12:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:05,017 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:12:05,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 2.1238938053097347) internal successors, (240), 112 states have internal predecessors, (240), 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) [2022-03-02 10:12:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:16,262 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6132 transitions and produced 4766 states. [2022-03-02 10:12:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-02 10:12:16,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 10:12:16,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:16,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:12:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:12:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1022399009, now seen corresponding path program 4 times [2022-03-02 10:12:16,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:12:16,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533960730] [2022-03-02 10:12:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:12:16,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:12:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:12:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 1698 proven. 444 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-03-02 10:12:17,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:12:17,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533960730] [2022-03-02 10:12:17,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533960730] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:12:17,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959129218] [2022-03-02 10:12:17,615 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:12:17,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:17,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:12:17,616 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) [2022-03-02 10:12:17,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 10:12:17,672 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:12:17,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:12:17,676 WARN L261 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 221 conjunts are in the unsatisfiable core [2022-03-02 10:12:17,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:12:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 0 proven. 2165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:12:21,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:12:23,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 6 proven. 2152 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-02 10:12:23,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959129218] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:12:23,532 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:12:23,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 61, 51] total 151 [2022-03-02 10:12:23,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779513658] [2022-03-02 10:12:23,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:12:23,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-03-02 10:12:23,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:12:23,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-03-02 10:12:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6589, Invalid=16363, Unknown=0, NotChecked=0, Total=22952 [2022-03-02 10:12:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:23,540 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:12:23,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 2.1776315789473686) internal successors, (331), 151 states have internal predecessors, (331), 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) [2022-03-02 10:12:23,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:23,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:23,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-02 10:12:23,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:41,903 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7581 transitions and produced 5873 states. [2022-03-02 10:12:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-02 10:12:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2022-03-02 10:12:41,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-02 10:12:42,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:42,115 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:12:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:12:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2090071643, now seen corresponding path program 5 times [2022-03-02 10:12:42,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:12:42,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66796146] [2022-03-02 10:12:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:12:42,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:12:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:12:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2858 backedges. 2618 proven. 223 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-02 10:12:43,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:12:43,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66796146] [2022-03-02 10:12:43,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66796146] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:12:43,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628068222] [2022-03-02 10:12:43,631 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:12:43,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:12:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:12:43,632 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) [2022-03-02 10:12:43,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 10:12:43,726 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2022-03-02 10:12:43,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:12:43,731 WARN L261 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 249 conjunts are in the unsatisfiable core [2022-03-02 10:12:43,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:12:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2858 backedges. 0 proven. 2858 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:12:48,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:12:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2858 backedges. 0 proven. 2857 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-02 10:12:51,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628068222] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:12:51,268 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:12:51,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 68, 61] total 179 [2022-03-02 10:12:51,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888111172] [2022-03-02 10:12:51,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:12:51,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 180 states [2022-03-02 10:12:51,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:12:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2022-03-02 10:12:51,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9971, Invalid=22249, Unknown=0, NotChecked=0, Total=32220 [2022-03-02 10:12:51,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:51,276 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:12:51,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 180 states, 180 states have (on average 2.1166666666666667) internal successors, (381), 179 states have internal predecessors, (381), 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) [2022-03-02 10:12:51,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:12:51,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:12:51,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-02 10:12:51,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2022-03-02 10:12:51,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:13:13,719 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9252 transitions and produced 7164 states. [2022-03-02 10:13:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:13:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:13:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-02 10:13:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2022-03-02 10:13:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-02 10:13:13,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 10:13:13,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:13:13,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:13:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:13:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1585531395, now seen corresponding path program 6 times [2022-03-02 10:13:13,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:13:13,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125166881] [2022-03-02 10:13:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:13:13,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:13:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:13:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4196 backedges. 3550 proven. 628 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-02 10:13:16,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:13:16,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125166881] [2022-03-02 10:13:16,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125166881] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:13:16,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984885496] [2022-03-02 10:13:16,192 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 10:13:16,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:13:16,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:13:16,193 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) [2022-03-02 10:13:16,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 10:13:16,307 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 65 check-sat command(s) [2022-03-02 10:13:16,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:13:16,311 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 305 conjunts are in the unsatisfiable core [2022-03-02 10:13:16,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:13:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4196 backedges. 0 proven. 4196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:13:22,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:13:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4196 backedges. 0 proven. 4194 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 10:13:26,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984885496] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:13:26,891 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:13:26,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 82, 73] total 218 [2022-03-02 10:13:26,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943715165] [2022-03-02 10:13:26,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:13:26,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 219 states [2022-03-02 10:13:26,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:13:26,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2022-03-02 10:13:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15087, Invalid=32655, Unknown=0, NotChecked=0, Total=47742 [2022-03-02 10:13:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:13:26,897 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:13:26,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 219 states, 219 states have (on average 2.1141552511415527) internal successors, (463), 218 states have internal predecessors, (463), 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) [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-02 10:13:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:13:57,453 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11219 transitions and produced 8681 states. [2022-03-02 10:13:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:13:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-02 10:13:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-03-02 10:13:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2022-03-02 10:13:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-02 10:13:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2022-03-02 10:13:57,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 10:13:57,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:13:57,655 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:13:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:13:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash -65697589, now seen corresponding path program 7 times [2022-03-02 10:13:57,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:13:57,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707741574] [2022-03-02 10:13:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:13:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:13:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:14:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6253 backedges. 5788 proven. 372 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-02 10:14:00,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:14:00,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707741574] [2022-03-02 10:14:00,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707741574] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:14:00,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508943539] [2022-03-02 10:14:00,273 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 10:14:00,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:14:00,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:14:00,277 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:14:00,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 10:14:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:14:00,363 WARN L261 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 373 conjunts are in the unsatisfiable core [2022-03-02 10:14:00,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:14:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6253 backedges. 0 proven. 6253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:14:08,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:14:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6253 backedges. 39 proven. 6136 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-02 10:14:13,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508943539] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:14:13,544 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:14:13,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 99, 80] total 249 [2022-03-02 10:14:13,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133009200] [2022-03-02 10:14:13,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:14:13,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 250 states [2022-03-02 10:14:13,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:14:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 250 interpolants. [2022-03-02 10:14:13,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20151, Invalid=42099, Unknown=0, NotChecked=0, Total=62250 [2022-03-02 10:14:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:14:13,554 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:14:13,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 250 states, 250 states have (on average 2.084) internal successors, (521), 249 states have internal predecessors, (521), 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) [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 315 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 293 states. [2022-03-02 10:14:13,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:15:19,783 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 21318 transitions and produced 16850 states. [2022-03-02 10:15:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 329 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:15:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 656 states. [2022-03-02 10:15:19,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 10:15:19,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 10:15:19,984 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:15:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:15:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1826183783, now seen corresponding path program 8 times [2022-03-02 10:15:19,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:15:19,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887428037] [2022-03-02 10:15:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:15:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:15:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:15:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28628 backedges. 177 proven. 28316 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-02 10:15:40,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:15:40,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887428037] [2022-03-02 10:15:40,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887428037] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:15:40,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841547222] [2022-03-02 10:15:40,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:15:40,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:15:40,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:15:40,583 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:15:40,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 10:15:40,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:15:40,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:15:40,810 WARN L261 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 929 conjunts are in the unsatisfiable core [2022-03-02 10:15:40,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:16:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28628 backedges. 0 proven. 28628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:16:27,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:16:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 28628 backedges. 9489 proven. 17554 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2022-03-02 10:16:43,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841547222] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:16:43,525 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:16:43,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [216, 238, 89] total 536 [2022-03-02 10:16:43,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468146899] [2022-03-02 10:16:43,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:16:43,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 537 states [2022-03-02 10:16:43,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:16:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 537 interpolants. [2022-03-02 10:16:43,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38465, Invalid=249367, Unknown=0, NotChecked=0, Total=287832 [2022-03-02 10:16:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:16:43,551 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:16:43,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 537 states, 537 states have (on average 2.0409683426443204) internal successors, (1096), 536 states have internal predecessors, (1096), 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) [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 329 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 341 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 656 states. [2022-03-02 10:16:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:19:14,371 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15314 transitions and produced 11989 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 329 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2022-03-02 10:19:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:19:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 657 states. [2022-03-02 10:19:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 981 states. [2022-03-02 10:19:14,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 10:19:14,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:19:14,579 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:19:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:19:14,580 INFO L85 PathProgramCache]: Analyzing trace with hash 52914911, now seen corresponding path program 9 times [2022-03-02 10:19:14,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:19:14,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409807514] [2022-03-02 10:19:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:19:14,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:19:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:19:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 69241 backedges. 56092 proven. 11382 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2022-03-02 10:19:30,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:19:30,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409807514] [2022-03-02 10:19:30,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409807514] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:19:30,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879754712] [2022-03-02 10:19:30,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:19:30,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:19:30,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:19:30,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:19:30,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 10:19:33,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 234 check-sat command(s) [2022-03-02 10:19:33,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:19:33,608 WARN L261 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 1373 conjunts are in the unsatisfiable core [2022-03-02 10:19:33,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:20:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 69241 backedges. 0 proven. 69241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:20:48,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:21:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 69241 backedges. 10083 proven. 57503 refuted. 0 times theorem prover too weak. 1655 trivial. 0 not checked. [2022-03-02 10:21:10,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879754712] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:21:10,836 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:21:10,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 349, 185] total 699 [2022-03-02 10:21:10,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559132105] [2022-03-02 10:21:10,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:21:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 700 states [2022-03-02 10:21:10,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:21:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 700 interpolants. [2022-03-02 10:21:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154161, Invalid=335139, Unknown=0, NotChecked=0, Total=489300 [2022-03-02 10:21:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:21:10,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:21:10,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 700 states, 700 states have (on average 2.087142857142857) internal successors, (1461), 699 states have internal predecessors, (1461), 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) [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 329 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 341 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 657 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 981 states. [2022-03-02 10:21:10,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-02 10:23:38,013 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:23:38,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 10:23:38,022 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 [2022-03-02 10:23:38,022 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 [2022-03-02 10:23:38,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 10:23:38,199 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1512 known predicates. [2022-03-02 10:23:38,201 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 10:23:38,201 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 10:23:38,202 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 10:23:38,206 INFO L732 BasicCegarLoop]: Path program histogram: [9] [2022-03-02 10:23:38,207 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:23:38,207 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:23:38,208 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:23:38 BasicIcfg [2022-03-02 10:23:38,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:23:38,209 INFO L158 Benchmark]: Toolchain (without parser) took 715351.04ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 148.8MB in the beginning and 1.0GB in the end (delta: -883.9MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-02 10:23:38,209 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:23:38,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.82ms. Allocated memory is still 188.7MB. Free memory was 148.8MB in the beginning and 147.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-02 10:23:38,209 INFO L158 Benchmark]: Boogie Preprocessor took 9.87ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 146.3MB in the end (delta: 965.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:23:38,209 INFO L158 Benchmark]: RCFGBuilder took 176.81ms. Allocated memory is still 188.7MB. Free memory was 146.2MB in the beginning and 136.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 10:23:38,210 INFO L158 Benchmark]: TraceAbstraction took 715139.53ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 136.3MB in the beginning and 1.0GB in the end (delta: -896.4MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-02 10:23:38,210 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 0.09ms. Allocated memory is still 188.7MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.82ms. Allocated memory is still 188.7MB. Free memory was 148.8MB in the beginning and 147.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.87ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 146.3MB in the end (delta: 965.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 176.81ms. Allocated memory is still 188.7MB. Free memory was 146.2MB in the beginning and 136.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 715139.53ms. Allocated memory was 188.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 136.3MB in the beginning and 1.0GB in the end (delta: -896.4MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1512 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1512 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1512 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 715.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 457.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3872, 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: 0.1s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 248.4s InterpolantComputationTime, 3966 NumberOfCodeBlocks, 3966 NumberOfCodeBlocksAsserted, 401 NumberOfCheckSat, 5922 ConstructedInterpolants, 0 QuantifiedInterpolants, 100493 SizeOfPredicates, 81 NumberOfNonLiveVariables, 4872 ConjunctsInSsa, 3777 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 96226/344688 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