/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-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 23:32:43,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 23:32:43,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 23:32:43,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 23:32:43,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 23:32:43,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 23:32:43,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 23:32:43,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 23:32:43,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 23:32:43,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 23:32:43,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 23:32:43,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 23:32:43,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 23:32:43,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 23:32:43,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 23:32:43,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 23:32:43,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 23:32:43,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 23:32:43,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 23:32:43,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 23:32:43,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 23:32:43,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 23:32:43,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 23:32:43,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 23:32:43,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 23:32:43,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 23:32:43,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 23:32:43,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 23:32:43,186 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-MCRwithDepranks-Lazy-wrwc.epf [2022-02-19 23:32:43,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 23:32:43,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 23:32:43,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 23:32:43,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 23:32:43,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 23:32:43,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 23:32:43,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 23:32:43,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 23:32:43,201 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 23:32:43,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 23:32:43,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 23:32:43,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 23:32:43,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:32:43,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 23:32:43,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 23:32:43,204 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 23:32:43,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 23:32:43,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 23:32:43,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 23:32:43,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 23:32:43,392 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 23:32:43,398 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 23:32:43,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2022-02-19 23:32:43,399 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2022-02-19 23:32:43,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 23:32:43,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 23:32:43,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 23:32:43,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 23:32:43,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 23:32:43,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,470 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 23:32:43,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 23:32:43,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 23:32:43,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 23:32:43,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 23:32:43,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 23:32:43,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 23:32:43,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 23:32:43,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 23:32:43,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/1) ... [2022-02-19 23:32:43,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:32:43,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:43,530 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) [2022-02-19 23:32:43,548 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 [2022-02-19 23:32:43,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 23:32:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 23:32:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 23:32:43,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 23:32:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 23:32:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 23:32:43,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 23:32:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 23:32:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 23:32:43,571 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 23:32:43,616 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 23:32:43,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 23:32:43,709 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 23:32:43,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 23:32:43,720 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 23:32:43,721 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:32:43 BoogieIcfgContainer [2022-02-19 23:32:43,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 23:32:43,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 23:32:43,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 23:32:43,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 23:32:43,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:32:43" (1/2) ... [2022-02-19 23:32:43,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1d10bc and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:32:43, skipping insertion in model container [2022-02-19 23:32:43,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:32:43" (2/2) ... [2022-02-19 23:32:43,731 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2022-02-19 23:32:43,734 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 23:32:43,734 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 23:32:43,734 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 23:32:43,734 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 23:32:43,764 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 23:32:43,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 23:32:43,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:43,802 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) [2022-02-19 23:32:43,803 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 [2022-02-19 23:32:43,824 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 23:32:43,828 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=false [2022-02-19 23:32:43,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 23:32:43,938 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 117 transitions and produced 105 states. [2022-02-19 23:32:43,940 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:32:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:32:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1806986359, now seen corresponding path program 1 times [2022-02-19 23:32:43,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:32:43,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463187958] [2022-02-19 23:32:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:32:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:32:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:32:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 34 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 23:32:44,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:32:44,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463187958] [2022-02-19 23:32:44,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463187958] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:32:44,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609084911] [2022-02-19 23:32:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:32:44,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:32:44,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:44,296 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) [2022-02-19 23:32:44,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 23:32:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:32:44,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-19 23:32:44,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:32:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:45,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:32:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:47,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609084911] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:32:47,193 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:32:47,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 19] total 47 [2022-02-19 23:32:47,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828563969] [2022-02-19 23:32:47,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:32:47,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-19 23:32:47,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:32:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-19 23:32:47,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=1805, Unknown=0, NotChecked=0, Total=2256 [2022-02-19 23:32:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:47,220 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:32:47,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.2291666666666665) internal successors, (107), 47 states have internal predecessors, (107), 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) [2022-02-19 23:32:47,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:48,311 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 93 transitions and produced 84 states. [2022-02-19 23:32:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-19 23:32:48,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 23:32:48,512 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 [2022-02-19 23:32:48,513 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:32:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:32:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash 697567295, now seen corresponding path program 2 times [2022-02-19 23:32:48,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:32:48,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223215822] [2022-02-19 23:32:48,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:32:48,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:32:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:32:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 12 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:48,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:32:48,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223215822] [2022-02-19 23:32:48,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223215822] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:32:48,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196641753] [2022-02-19 23:32:48,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:32:48,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:32:48,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:48,732 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) [2022-02-19 23:32:48,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 23:32:48,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:32:48,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:32:48,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-19 23:32:48,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:32:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 30 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:49,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:32:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 12 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:49,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196641753] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:32:49,952 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:32:49,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 43 [2022-02-19 23:32:49,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026595480] [2022-02-19 23:32:49,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:32:49,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-19 23:32:49,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:32:49,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-19 23:32:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1507, Unknown=0, NotChecked=0, Total=1806 [2022-02-19 23:32:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:49,958 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:32:49,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.302325581395349) internal successors, (99), 43 states have internal predecessors, (99), 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) [2022-02-19 23:32:49,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-02-19 23:32:49,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:50,667 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 162 transitions and produced 142 states. [2022-02-19 23:32:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:32:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:32:50,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 23:32:50,885 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 [2022-02-19 23:32:50,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:32:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:32:50,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1759347847, now seen corresponding path program 3 times [2022-02-19 23:32:50,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:32:50,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595678972] [2022-02-19 23:32:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:32:50,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:32:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:32:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 121 proven. 98 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 23:32:51,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:32:51,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595678972] [2022-02-19 23:32:51,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595678972] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:32:51,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648251317] [2022-02-19 23:32:51,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 23:32:51,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:32:51,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:51,192 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) [2022-02-19 23:32:51,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 23:32:51,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-02-19 23:32:51,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:32:51,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-19 23:32:51,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:32:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 4 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:52,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:32:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:53,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648251317] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:32:53,545 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:32:53,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 26, 27] total 70 [2022-02-19 23:32:53,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974721555] [2022-02-19 23:32:53,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:32:53,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-19 23:32:53,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:32:53,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-19 23:32:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=4150, Unknown=0, NotChecked=0, Total=4970 [2022-02-19 23:32:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:53,548 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:32:53,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.183098591549296) internal successors, (155), 70 states have internal predecessors, (155), 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) [2022-02-19 23:32:53,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:32:53,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:32:53,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:55,060 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 172 transitions and produced 145 states. [2022-02-19 23:32:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:32:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:32:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-19 23:32:55,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 23:32:55,261 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 [2022-02-19 23:32:55,262 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:32:55,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:32:55,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1968555943, now seen corresponding path program 4 times [2022-02-19 23:32:55,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:32:55,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344646091] [2022-02-19 23:32:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:32:55,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:32:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:32:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:55,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:32:55,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344646091] [2022-02-19 23:32:55,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344646091] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:32:55,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819015701] [2022-02-19 23:32:55,991 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 23:32:55,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:32:55,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:32:55,992 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) [2022-02-19 23:32:55,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 23:32:56,030 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 23:32:56,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:32:56,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 80 conjunts are in the unsatisfiable core [2022-02-19 23:32:56,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:32:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:57,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:32:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:32:59,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819015701] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:32:59,798 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:32:59,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 88 [2022-02-19 23:32:59,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107849291] [2022-02-19 23:32:59,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:32:59,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-19 23:32:59,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:32:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-19 23:32:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1305, Invalid=6351, Unknown=0, NotChecked=0, Total=7656 [2022-02-19 23:32:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:32:59,801 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:32:59,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.0113636363636362) internal successors, (177), 88 states have internal predecessors, (177), 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) [2022-02-19 23:32:59,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:32:59,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:32:59,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-19 23:32:59,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:33:11,642 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 429 transitions and produced 327 states. [2022-02-19 23:33:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:33:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:33:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:33:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-19 23:33:11,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 23:33:11,859 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 [2022-02-19 23:33:11,860 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:33:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:33:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1327877697, now seen corresponding path program 5 times [2022-02-19 23:33:11,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:33:11,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343062932] [2022-02-19 23:33:11,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:33:11,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:33:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:33:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1818 proven. 374 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-19 23:33:12,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:33:12,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343062932] [2022-02-19 23:33:12,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343062932] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:33:12,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366045796] [2022-02-19 23:33:12,808 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 23:33:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:33:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:33:12,809 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) [2022-02-19 23:33:12,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 23:33:12,925 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 44 check-sat command(s) [2022-02-19 23:33:12,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:33:12,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 176 conjunts are in the unsatisfiable core [2022-02-19 23:33:12,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:33:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 0 proven. 2210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:33:17,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:33:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1 proven. 2209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:33:29,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366045796] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:33:29,520 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:33:29,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 67, 68] total 181 [2022-02-19 23:33:29,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967872923] [2022-02-19 23:33:29,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:33:29,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 182 states [2022-02-19 23:33:29,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:33:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2022-02-19 23:33:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7248, Invalid=25694, Unknown=0, NotChecked=0, Total=32942 [2022-02-19 23:33:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:33:29,529 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:33:29,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 182 states, 182 states have (on average 2.1373626373626373) internal successors, (389), 181 states have internal predecessors, (389), 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) [2022-02-19 23:33:29,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:33:29,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:33:29,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:33:29,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-19 23:33:29,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:33:50,179 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 441 transitions and produced 361 states. [2022-02-19 23:33:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:33:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:33:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:33:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-19 23:33:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-19 23:33:50,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 23:33:50,391 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 [2022-02-19 23:33:50,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:33:50,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:33:50,391 INFO L85 PathProgramCache]: Analyzing trace with hash -767613773, now seen corresponding path program 6 times [2022-02-19 23:33:50,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:33:50,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902978246] [2022-02-19 23:33:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:33:50,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:33:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:33:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 0 proven. 2381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:33:54,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:33:54,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902978246] [2022-02-19 23:33:54,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902978246] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:33:54,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130067020] [2022-02-19 23:33:54,420 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 23:33:54,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:33:54,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:33:54,421 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) [2022-02-19 23:33:54,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 23:33:54,650 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 36 check-sat command(s) [2022-02-19 23:33:54,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:33:54,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 173 conjunts are in the unsatisfiable core [2022-02-19 23:33:54,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:34:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 12 proven. 2369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:34:03,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:34:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 1122 proven. 1259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:34:11,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130067020] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:34:11,532 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:34:11,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76, 75] total 224 [2022-02-19 23:34:11,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535715977] [2022-02-19 23:34:11,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:34:11,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 225 states [2022-02-19 23:34:11,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:34:11,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants. [2022-02-19 23:34:11,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5116, Invalid=45284, Unknown=0, NotChecked=0, Total=50400 [2022-02-19 23:34:11,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:34:11,540 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:34:11,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 225 states, 225 states have (on average 1.9866666666666666) internal successors, (447), 224 states have internal predecessors, (447), 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) [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-02-19 23:34:11,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:34:36,384 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1040 transitions and produced 750 states. [2022-02-19 23:34:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:34:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:34:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:34:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-19 23:34:36,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-02-19 23:34:36,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-02-19 23:34:36,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 23:34:36,586 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 [2022-02-19 23:34:36,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:34:36,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:34:36,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2114105293, now seen corresponding path program 7 times [2022-02-19 23:34:36,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:34:36,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481083570] [2022-02-19 23:34:36,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:34:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:34:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:34:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13765 backedges. 10084 proven. 3619 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-02-19 23:34:40,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:34:40,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481083570] [2022-02-19 23:34:40,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481083570] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:34:40,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927154462] [2022-02-19 23:34:40,485 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 23:34:40,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:34:40,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:34:40,489 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) [2022-02-19 23:34:40,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 23:34:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:34:40,761 WARN L261 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 463 conjunts are in the unsatisfiable core [2022-02-19 23:34:40,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:35:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 13765 backedges. 0 proven. 13765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:35:20,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:37:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 13765 backedges. 1 proven. 13764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:37:36,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927154462] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:37:36,538 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:37:36,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 169, 170] total 442 [2022-02-19 23:37:36,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247232411] [2022-02-19 23:37:36,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:37:36,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 443 states [2022-02-19 23:37:36,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:37:36,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 443 interpolants. [2022-02-19 23:37:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34548, Invalid=161258, Unknown=0, NotChecked=0, Total=195806 [2022-02-19 23:37:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:37:36,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:37:36,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 443 states, 443 states have (on average 2.1557562076749437) internal successors, (955), 442 states have internal predecessors, (955), 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) [2022-02-19 23:37:36,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:37:36,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:37:36,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:37:36,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-19 23:37:36,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-02-19 23:37:36,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2022-02-19 23:37:36,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:41:01,614 WARN L228 SmtUtils]: Spent 13.37s on a formula simplification. DAG size of input: 2038 DAG size of output: 1197 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-19 23:41:19,691 WARN L228 SmtUtils]: Spent 14.10s on a formula simplification. DAG size of input: 2041 DAG size of output: 1200 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-19 23:41:37,470 WARN L228 SmtUtils]: Spent 13.95s on a formula simplification. DAG size of input: 2047 DAG size of output: 1206 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-19 23:41:38,501 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 825 transitions and produced 681 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-02-19 23:41:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2022-02-19 23:41:38,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 23:41:38,713 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 [2022-02-19 23:41:38,713 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:41:38,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:41:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash 315163955, now seen corresponding path program 8 times [2022-02-19 23:41:38,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:41:38,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502812018] [2022-02-19 23:41:38,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:41:38,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:41:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:41:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8845 backedges. 0 proven. 8845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:41:47,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:41:47,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502812018] [2022-02-19 23:41:47,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502812018] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:41:47,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74110724] [2022-02-19 23:41:47,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:41:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:41:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:41:47,634 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) [2022-02-19 23:41:47,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 23:41:48,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:41:48,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:41:48,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 407 conjunts are in the unsatisfiable core [2022-02-19 23:41:48,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:42:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 8845 backedges. 0 proven. 8845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:42:16,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-02-19 23:47:06,889 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 [2022-02-19 23:47:06,889 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:47:06,890 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 [2022-02-19 23:47:06,891 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-19 23:47:06,893 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 23:47:06,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 23:47:07,107 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 [2022-02-19 23:47:07,107 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 282 with TraceHistMax 67,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. [2022-02-19 23:47:07,111 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 23:47:07,111 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 23:47:07,118 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-02-19 23:47:07,119 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:47:07,119 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:47:07,121 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:47:07 BasicIcfg [2022-02-19 23:47:07,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:47:07,121 INFO L158 Benchmark]: Toolchain (without parser) took 863682.60ms. Allocated memory was 181.4MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 140.0MB in the beginning and 619.5MB in the end (delta: -479.6MB). Peak memory consumption was 912.4MB. Max. memory is 8.0GB. [2022-02-19 23:47:07,121 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:47:07,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.76ms. Allocated memory is still 181.4MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 23:47:07,122 INFO L158 Benchmark]: Boogie Preprocessor took 9.67ms. Allocated memory is still 181.4MB. Free memory was 138.3MB in the beginning and 137.4MB in the end (delta: 908.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:47:07,122 INFO L158 Benchmark]: RCFGBuilder took 239.02ms. Allocated memory is still 181.4MB. Free memory was 137.4MB in the beginning and 128.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 23:47:07,122 INFO L158 Benchmark]: TraceAbstraction took 863398.28ms. Allocated memory was 181.4MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 128.1MB in the beginning and 619.5MB in the end (delta: -491.4MB). Peak memory consumption was 899.8MB. Max. memory is 8.0GB. [2022-02-19 23:47:07,123 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 181.4MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.76ms. Allocated memory is still 181.4MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.67ms. Allocated memory is still 181.4MB. Free memory was 138.3MB in the beginning and 137.4MB in the end (delta: 908.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.02ms. Allocated memory is still 181.4MB. Free memory was 137.4MB in the beginning and 128.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 863398.28ms. Allocated memory was 181.4MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 128.1MB in the beginning and 619.5MB in the end (delta: -491.4MB). Peak memory consumption was 899.8MB. 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: 51]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 282 with TraceHistMax 67,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - TimeoutResultAtElement [Line: 46]: 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 282 with TraceHistMax 67,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - TimeoutResultAtElement [Line: 46]: 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 282 with TraceHistMax 67,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 863.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 302.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 824, 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, 1.2s SatisfiabilityAnalysisTime, 229.0s InterpolantComputationTime, 1662 NumberOfCodeBlocks, 1662 NumberOfCodeBlocksAsserted, 105 NumberOfCheckSat, 2472 ConstructedInterpolants, 7 QuantifiedInterpolants, 137032 SizeOfPredicates, 65 NumberOfNonLiveVariables, 2018 ConjunctsInSsa, 1000 ConjunctsInUnsatCore, 21 InterpolantComputations, 0 PerfectInterpolantSequences, 13361/57057 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