/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/figure1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 11:33:25,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 11:33:25,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 11:33:25,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 11:33:25,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 11:33:25,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 11:33:25,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 11:33:25,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 11:33:25,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 11:33:25,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 11:33:25,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 11:33:25,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 11:33:25,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 11:33:25,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 11:33:25,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 11:33:25,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 11:33:25,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 11:33:25,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 11:33:25,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 11:33:25,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 11:33:25,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 11:33:25,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 11:33:25,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 11:33:25,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 11:33:25,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 11:33:25,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 11:33:25,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 11:33:25,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 11:33:25,139 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 [2022-02-20 11:33:25,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 11:33:25,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 11:33:25,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 11:33:25,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 11:33:25,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 11:33:25,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 11:33:25,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 11:33:25,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 11:33:25,171 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 11:33:25,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 11:33:25,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 11:33:25,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 11:33:25,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 11:33:25,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 11:33:25,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 11:33:25,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 11:33:25,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:33:25,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 11:33:25,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 11:33:25,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 11:33:25,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 11:33:25,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 11:33:25,176 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 11:33:25,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 11:33:25,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 11:33:25,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 11:33:25,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 11:33:25,405 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 11:33:25,406 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 11:33:25,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1.wvr.bpl [2022-02-20 11:33:25,407 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1.wvr.bpl' [2022-02-20 11:33:25,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 11:33:25,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 11:33:25,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 11:33:25,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 11:33:25,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 11:33:25,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,454 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 11:33:25,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 11:33:25,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 11:33:25,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 11:33:25,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 11:33:25,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 11:33:25,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 11:33:25,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 11:33:25,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 11:33:25,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/1) ... [2022-02-20 11:33:25,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:33:25,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:25,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 11:33:25,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 11:33:25,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 11:33:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 11:33:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 11:33:25,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 11:33:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 11:33:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 11:33:25,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 11:33:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 11:33:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 11:33:25,547 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 11:33:25,582 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 11:33:25,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 11:33:25,640 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 11:33:25,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 11:33:25,654 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 11:33:25,656 INFO L202 PluginConnector]: Adding new model figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:33:25 BoogieIcfgContainer [2022-02-20 11:33:25,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 11:33:25,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 11:33:25,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 11:33:25,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 11:33:25,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:33:25" (1/2) ... [2022-02-20 11:33:25,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d77af1c and model type figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:33:25, skipping insertion in model container [2022-02-20 11:33:25,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:33:25" (2/2) ... [2022-02-20 11:33:25,669 INFO L111 eAbstractionObserver]: Analyzing ICFG figure1.wvr.bpl [2022-02-20 11:33:25,677 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 11:33:25,677 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 11:33:25,677 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 11:33:25,678 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 11:33:25,711 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 11:33:25,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 11:33:25,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:25,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 11:33:25,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 11:33:25,796 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 11:33:25,802 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 [2022-02-20 11:33:25,802 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 11:33:26,014 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 153 transitions and produced 139 states. [2022-02-20 11:33:26,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:33:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:33:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1450064691, now seen corresponding path program 1 times [2022-02-20 11:33:26,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:33:26,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78797514] [2022-02-20 11:33:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:33:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:33:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:33:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 228 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:33:26,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:33:26,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78797514] [2022-02-20 11:33:26,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78797514] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:33:26,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217000102] [2022-02-20 11:33:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:33:26,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:33:26,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:26,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:33:26,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 11:33:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:33:27,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-20 11:33:27,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:33:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 46 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:33:28,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:33:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 52 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:33:29,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217000102] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:33:29,117 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:33:29,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 27, 27] total 73 [2022-02-20 11:33:29,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592408446] [2022-02-20 11:33:29,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:33:29,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-20 11:33:29,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:33:29,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-20 11:33:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1313, Invalid=4089, Unknown=0, NotChecked=0, Total=5402 [2022-02-20 11:33:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:29,147 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:33:29,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.2162162162162162) internal successors, (164), 73 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:33:29,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:31,417 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 233 transitions and produced 194 states. [2022-02-20 11:33:31,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 11:33:31,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 11:33:31,631 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 [2022-02-20 11:33:31,632 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:33:31,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:33:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1694203599, now seen corresponding path program 2 times [2022-02-20 11:33:31,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:33:31,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911835271] [2022-02-20 11:33:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:33:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:33:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:33:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 391 proven. 256 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:31,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:33:31,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911835271] [2022-02-20 11:33:31,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911835271] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:33:31,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125931561] [2022-02-20 11:33:31,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 11:33:31,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:33:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:31,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:33:32,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 11:33:32,062 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 11:33:32,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:33:32,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-20 11:33:32,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:33:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 391 proven. 256 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:32,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:33:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 391 proven. 256 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:32,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125931561] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:33:32,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:33:32,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 19 [2022-02-20 11:33:32,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307918067] [2022-02-20 11:33:32,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:33:32,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-20 11:33:32,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:33:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-20 11:33:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2022-02-20 11:33:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:32,431 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:33:32,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:33:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-20 11:33:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:33,068 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 468 transitions and produced 382 states. [2022-02-20 11:33:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:33:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:33:33,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 11:33:33,283 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 [2022-02-20 11:33:33,284 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:33:33,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:33:33,285 INFO L85 PathProgramCache]: Analyzing trace with hash -18894405, now seen corresponding path program 3 times [2022-02-20 11:33:33,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:33:33,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870545847] [2022-02-20 11:33:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:33:33,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:33:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:33:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3226 backedges. 2548 proven. 662 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-20 11:33:35,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:33:35,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870545847] [2022-02-20 11:33:35,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870545847] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:33:35,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665544445] [2022-02-20 11:33:35,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 11:33:35,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:33:35,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:35,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:33:35,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 11:33:35,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 49 check-sat command(s) [2022-02-20 11:33:35,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:33:35,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 80 conjunts are in the unsatisfiable core [2022-02-20 11:33:35,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:33:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3226 backedges. 451 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:33:39,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:33:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3226 backedges. 457 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:33:44,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665544445] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:33:44,011 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:33:44,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 80, 80] total 222 [2022-02-20 11:33:44,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915412674] [2022-02-20 11:33:44,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:33:44,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 223 states [2022-02-20 11:33:44,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:33:44,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2022-02-20 11:33:44,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11285, Invalid=38221, Unknown=0, NotChecked=0, Total=49506 [2022-02-20 11:33:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:44,036 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:33:44,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 223 states, 223 states have (on average 2.116591928251121) internal successors, (472), 222 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:33:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:33:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:33:44,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:56,440 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 653 transitions and produced 519 states. [2022-02-20 11:33:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:33:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:33:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2022-02-20 11:33:56,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-20 11:33:56,641 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 [2022-02-20 11:33:56,641 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:33:56,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:33:56,642 INFO L85 PathProgramCache]: Analyzing trace with hash -343119525, now seen corresponding path program 4 times [2022-02-20 11:33:56,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:33:56,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464858677] [2022-02-20 11:33:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:33:56,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:33:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:33:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5626 backedges. 3016 proven. 2601 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:57,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:33:57,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464858677] [2022-02-20 11:33:57,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464858677] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:33:57,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040093686] [2022-02-20 11:33:57,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 11:33:57,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:33:57,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:33:57,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:33:57,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 11:33:57,969 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 11:33:57,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:33:57,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 104 conjunts are in the unsatisfiable core [2022-02-20 11:33:57,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:33:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5626 backedges. 3016 proven. 2601 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:58,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:33:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5626 backedges. 3016 proven. 2601 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:33:58,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040093686] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:33:58,771 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:33:58,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 54 [2022-02-20 11:33:58,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640983377] [2022-02-20 11:33:58,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:33:58,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-20 11:33:58,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:33:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-20 11:33:58,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2022-02-20 11:33:58,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:33:58,775 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:33:58,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.111111111111111) internal successors, (222), 54 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:33:58,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:33:58,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:33:58,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 180 states. [2022-02-20 11:33:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:34:02,993 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1385 transitions and produced 1083 states. [2022-02-20 11:34:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:34:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:34:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2022-02-20 11:34:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-20 11:34:03,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 11:34:03,195 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 [2022-02-20 11:34:03,195 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:34:03,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:34:03,196 INFO L85 PathProgramCache]: Analyzing trace with hash 773197849, now seen corresponding path program 5 times [2022-02-20 11:34:03,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:34:03,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489497210] [2022-02-20 11:34:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:34:03,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:34:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:34:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 30293 backedges. 25273 proven. 4968 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-20 11:34:14,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:34:14,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489497210] [2022-02-20 11:34:14,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489497210] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:34:14,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016608702] [2022-02-20 11:34:14,776 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 11:34:14,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:34:14,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:34:14,780 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) [2022-02-20 11:34:14,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 11:34:15,146 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 140 check-sat command(s) [2022-02-20 11:34:15,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:34:15,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 235 conjunts are in the unsatisfiable core [2022-02-20 11:34:15,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:34:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 30293 backedges. 3222 proven. 27071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:34:43,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:35:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 30293 backedges. 3228 proven. 27065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:35:12,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016608702] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:35:12,968 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:35:12,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [184, 235, 235] total 651 [2022-02-20 11:35:12,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237085056] [2022-02-20 11:35:12,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:35:12,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 652 states [2022-02-20 11:35:12,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:35:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 652 interpolants. [2022-02-20 11:35:13,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96136, Invalid=328316, Unknown=0, NotChecked=0, Total=424452 [2022-02-20 11:35:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:35:13,023 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:35:13,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 652 states, 652 states have (on average 2.0950920245398774) internal successors, (1366), 651 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:35:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:35:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:35:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2022-02-20 11:35:13,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-20 11:35:13,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:37:33,585 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1937 transitions and produced 1521 states. [2022-02-20 11:37:33,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:37:33,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:37:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2022-02-20 11:37:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-20 11:37:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 542 states. [2022-02-20 11:37:33,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-20 11:37:33,787 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 [2022-02-20 11:37:33,787 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:37:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:37:33,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1164809465, now seen corresponding path program 6 times [2022-02-20 11:37:33,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:37:33,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069771391] [2022-02-20 11:37:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:37:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:37:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:37:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 51208 backedges. 26235 proven. 24964 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-20 11:37:43,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:37:43,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069771391] [2022-02-20 11:37:43,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069771391] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:37:43,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598870101] [2022-02-20 11:37:43,057 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 11:37:43,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:37:43,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:37:43,060 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) [2022-02-20 11:37:43,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 11:37:43,593 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 163 check-sat command(s) [2022-02-20 11:37:43,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:37:43,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 321 conjunts are in the unsatisfiable core [2022-02-20 11:37:43,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:37:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 51208 backedges. 26244 proven. 24964 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:37:44,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:37:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 51208 backedges. 26244 proven. 24964 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:37:46,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598870101] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:37:46,181 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:37:46,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [161, 164, 164] total 167 [2022-02-20 11:37:46,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503213155] [2022-02-20 11:37:46,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:37:46,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-02-20 11:37:46,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:37:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-02-20 11:37:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2022-02-20 11:37:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:37:46,191 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:37:46,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 4.059880239520958) internal successors, (678), 167 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 542 states. [2022-02-20 11:37:46,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:39:12,330 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3992 transitions and produced 3084 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 731 states. [2022-02-20 11:39:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-02-20 11:39:12,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 11:39:12,531 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 [2022-02-20 11:39:12,532 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:39:12,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:39:12,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1543645241, now seen corresponding path program 7 times [2022-02-20 11:39:12,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:39:12,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388317161] [2022-02-20 11:39:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:39:12,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:39:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:40:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 255700 backedges. 216009 proven. 39543 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-02-20 11:40:40,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:40:40,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388317161] [2022-02-20 11:40:40,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388317161] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:40:40,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803941845] [2022-02-20 11:40:40,551 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 11:40:40,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:40:40,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:40:40,555 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) [2022-02-20 11:40:40,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 11:40:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:40:41,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 3588 conjuncts, 674 conjunts are in the unsatisfiable core [2022-02-20 11:40:41,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:44:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 255700 backedges. 27778 proven. 227922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:44:22,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-02-20 11:45:10,685 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 11:45:10,692 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 11:45:10,704 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 11:45:10,704 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 11:45:10,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-20 11:45:10,886 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 [2022-02-20 11:45:10,886 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1355 with TraceHistMax 460,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 1311 known predicates. [2022-02-20 11:45:10,888 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 11:45:10,888 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 11:45:10,893 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-02-20 11:45:10,895 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 11:45:10,896 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 11:45:10,897 INFO L202 PluginConnector]: Adding new model figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 11:45:10 BasicIcfg [2022-02-20 11:45:10,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 11:45:10,899 INFO L158 Benchmark]: Toolchain (without parser) took 705470.18ms. Allocated memory was 175.1MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 132.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 904.7MB. Max. memory is 8.0GB. [2022-02-20 11:45:10,899 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 11:45:10,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.38ms. Allocated memory is still 175.1MB. Free memory was 132.4MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 11:45:10,900 INFO L158 Benchmark]: Boogie Preprocessor took 10.75ms. Allocated memory is still 175.1MB. Free memory was 130.9MB in the beginning and 130.0MB in the end (delta: 889.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 11:45:10,900 INFO L158 Benchmark]: RCFGBuilder took 188.63ms. Allocated memory is still 175.1MB. Free memory was 129.9MB in the beginning and 121.1MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 11:45:10,901 INFO L158 Benchmark]: TraceAbstraction took 705240.26ms. Allocated memory was 175.1MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 120.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 893.2MB. Max. memory is 8.0GB. [2022-02-20 11:45:10,902 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 0.11ms. Allocated memory is still 175.1MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.38ms. Allocated memory is still 175.1MB. Free memory was 132.4MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.75ms. Allocated memory is still 175.1MB. Free memory was 130.9MB in the beginning and 130.0MB in the end (delta: 889.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 188.63ms. Allocated memory is still 175.1MB. Free memory was 129.9MB in the beginning and 121.1MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 705240.26ms. Allocated memory was 175.1MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 120.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 893.2MB. 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 PartialOrderCegarLoop was analyzing trace of length 1355 with TraceHistMax 460,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 1311 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 PartialOrderCegarLoop was analyzing trace of length 1355 with TraceHistMax 460,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 1311 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 PartialOrderCegarLoop was analyzing trace of length 1355 with TraceHistMax 460,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 1311 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 705.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 246.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1296, 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: 0.2s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 95.5s InterpolantComputationTime, 3336 NumberOfCodeBlocks, 3336 NumberOfCodeBlocksAsserted, 362 NumberOfCheckSat, 4986 ConstructedInterpolants, 0 QuantifiedInterpolants, 29173 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4470 ConjunctsInSsa, 801 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 124586/273942 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