/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-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 12:04:34,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 12:04:34,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 12:04:34,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 12:04:34,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 12:04:34,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 12:04:34,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 12:04:34,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 12:04:34,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 12:04:34,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 12:04:34,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 12:04:34,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 12:04:34,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 12:04:34,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 12:04:34,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 12:04:34,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 12:04:34,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 12:04:34,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 12:04:34,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 12:04:34,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 12:04:34,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 12:04:34,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 12:04:34,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 12:04:34,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 12:04:34,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 12:04:34,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 12:04:34,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 12:04:34,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 12:04:34,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 12:04:34,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 12:04:34,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 12:04:34,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 12:04:34,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 12:04:34,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 12:04:34,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 12:04:34,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 12:04:34,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 12:04:34,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 12:04:34,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 12:04:34,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 12:04:34,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 12:04:34,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 12:04:34,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 12:04:34,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 12:04:34,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 12:04:34,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 12:04:34,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 12:04:34,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 12:04:34,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 12:04:34,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 12:04:34,439 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 12:04:34,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 12:04:34,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 12:04:34,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 12:04:34,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:04:34,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 12:04:34,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 12:04:34,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 12:04:34,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 12:04:34,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 12:04:34,610 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 12:04:34,610 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 12:04:34,611 INFO L432 ainManager$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 [2022-03-04 12:04:34,611 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' [2022-03-04 12:04:34,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 12:04:34,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 12:04:34,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 12:04:34,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 12:04:34,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 12:04:34,641 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,645 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,650 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 12:04:34,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 12:04:34,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 12:04:34,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 12:04:34,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 12:04:34,657 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,657 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,657 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,658 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,659 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,661 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,661 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 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 12:04:34,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 12:04:34,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 12:04:34,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 12:04:34,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:04:34" (1/1) ... [2022-03-04 12:04:34,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:04:34,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:04:34,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 12:04:34,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 12:04:34,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 12:04:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 12:04:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 12:04:34,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 12:04:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 12:04:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 12:04:34,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 12:04:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 12:04:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 12:04:34,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 12:04:34,750 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 12:04:34,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 12:04:34,820 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 12:04:34,830 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 12:04:34,830 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 12:04:34,832 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:04:34 BoogieIcfgContainer [2022-03-04 12:04:34,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 12:04:34,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 12:04:34,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 12:04:34,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 12:04:34,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:04:34" (1/2) ... [2022-03-04 12:04:34,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c97583 and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:04:34, skipping insertion in model container [2022-03-04 12:04:34,858 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 04.03 12:04:34" (2/2) ... [2022-03-04 12:04:34,859 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2022-03-04 12:04:34,863 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 12:04:34,863 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 12:04:34,863 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 12:04:34,863 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 12:04:34,883 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 12:04:34,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 12:04:34,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:04:34,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 12:04:34,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 12:04:34,958 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 12:04:34,963 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 12:04:34,963 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 12:04:35,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 123 transitions and produced 110 states. [2022-03-04 12:04:35,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:04:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:04:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash 356590127, now seen corresponding path program 1 times [2022-03-04 12:04:35,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:04:35,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018497875] [2022-03-04 12:04:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:04:35,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:04:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:04:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 121 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 12:04:35,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:04:35,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018497875] [2022-03-04 12:04:35,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018497875] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:04:35,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145185262] [2022-03-04 12:04:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:04:35,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:04:35,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:04:35,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:04:35,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 12:04:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:04:35,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-04 12:04:35,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:04:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:37,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:04:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:39,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145185262] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:04:39,370 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:04:39,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 61 [2022-03-04 12:04:39,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106674956] [2022-03-04 12:04:39,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:04:39,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-04 12:04:39,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:04:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-04 12:04:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=828, Invalid=2954, Unknown=0, NotChecked=0, Total=3782 [2022-03-04 12:04:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:04:39,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:04:39,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.129032258064516) internal successors, (132), 61 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:04:39,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:04:42,794 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 162 transitions and produced 140 states. [2022-03-04 12:04:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:04:42,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 12:04:42,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 12:04:42,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:04:42,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:04:42,997 INFO L85 PathProgramCache]: Analyzing trace with hash 168962653, now seen corresponding path program 2 times [2022-03-04 12:04:42,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:04:42,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020875316] [2022-03-04 12:04:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:04:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:04:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:04:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:43,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:04:43,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020875316] [2022-03-04 12:04:43,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020875316] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:04:43,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384856953] [2022-03-04 12:04:43,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:04:43,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:04:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:04:43,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:04:44,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 12:04:44,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:04:44,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:04:44,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-04 12:04:44,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:04:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 180 proven. 114 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 12:04:45,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:04:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 110 proven. 184 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 12:04:47,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384856953] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:04:47,305 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:04:47,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 29] total 87 [2022-03-04 12:04:47,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471197719] [2022-03-04 12:04:47,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:04:47,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-03-04 12:04:47,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:04:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-03-04 12:04:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1187, Invalid=6469, Unknown=0, NotChecked=0, Total=7656 [2022-03-04 12:04:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:04:47,309 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:04:47,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.022727272727273) internal successors, (178), 87 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:04:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:04:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:04:49,551 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 183 transitions and produced 155 states. [2022-03-04 12:04:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:04:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-04 12:04:49,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 12:04:49,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:04:49,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:04:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:04:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash -461377181, now seen corresponding path program 3 times [2022-03-04 12:04:49,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:04:49,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848035070] [2022-03-04 12:04:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:04:49,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:04:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:04:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:50,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:04:50,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848035070] [2022-03-04 12:04:50,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848035070] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:04:50,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475475008] [2022-03-04 12:04:50,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:04:50,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:04:50,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:04:50,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:04:50,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 12:04:50,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-03-04 12:04:50,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:04:50,717 WARN L261 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-04 12:04:50,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:04:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:53,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:05:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:05:03,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475475008] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:05:03,197 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:05:03,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 101 [2022-03-04 12:05:03,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593831509] [2022-03-04 12:05:03,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:05:03,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-04 12:05:03,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:05:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-04 12:05:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1387, Invalid=8915, Unknown=0, NotChecked=0, Total=10302 [2022-03-04 12:05:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:05:03,200 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:05:03,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.9313725490196079) internal successors, (197), 101 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:05:03,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:05:03,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-04 12:05:03,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:05:23,694 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 279 transitions and produced 213 states. [2022-03-04 12:05:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:05:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-04 12:05:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-04 12:05:23,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 12:05:23,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:05:23,898 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:05:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:05:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1312795897, now seen corresponding path program 4 times [2022-03-04 12:05:23,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:05:23,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899937229] [2022-03-04 12:05:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:05:23,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:05:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:05:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 676 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:05:24,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:05:24,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899937229] [2022-03-04 12:05:24,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899937229] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:05:24,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327347981] [2022-03-04 12:05:24,698 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:05:24,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:05:24,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:05:24,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:05:24,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 12:05:24,789 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:05:24,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:05:24,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-04 12:05:24,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:05:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 0 proven. 898 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:05:27,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:05:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 702 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:05:33,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327347981] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:05:33,578 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:05:33,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 46, 46] total 133 [2022-03-04 12:05:33,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064618567] [2022-03-04 12:05:33,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:05:33,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-03-04 12:05:33,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:05:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-03-04 12:05:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4071, Invalid=13751, Unknown=0, NotChecked=0, Total=17822 [2022-03-04 12:05:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:05:33,583 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:05:33,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 2.044776119402985) internal successors, (274), 133 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:05:33,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-04 12:05:33,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-04 12:05:33,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-03-04 12:05:33,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:05:54,869 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 668 transitions and produced 528 states. [2022-03-04 12:05:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 12:05:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 12:05:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-04 12:05:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-04 12:05:54,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 12:05:55,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:05:55,072 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:05:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:05:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -30474865, now seen corresponding path program 5 times [2022-03-04 12:05:55,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:05:55,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645389442] [2022-03-04 12:05:55,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:05:55,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:05:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:05:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 4694 proven. 1647 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-04 12:05:57,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:05:57,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645389442] [2022-03-04 12:05:57,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645389442] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:05:57,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653789060] [2022-03-04 12:05:57,964 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 12:05:57,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:05:57,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:05:57,966 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:05:57,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 12:05:58,228 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2022-03-04 12:05:58,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:05:58,239 WARN L261 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 332 conjunts are in the unsatisfiable core [2022-03-04 12:05:58,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:06:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 0 proven. 6361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:06:12,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:09:02,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 0 proven. 6361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:09:02,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653789060] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:09:02,349 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:09:02,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 115, 116] total 322 [2022-03-04 12:09:02,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661987648] [2022-03-04 12:09:02,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:09:02,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-04 12:09:02,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:09:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-04 12:09:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19699, Invalid=84307, Unknown=0, NotChecked=0, Total=104006 [2022-03-04 12:09:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:09:02,365 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:09:02,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 2.086687306501548) internal successors, (674), 322 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:09:02,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 12:09:02,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 12:09:02,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-04 12:09:02,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-03-04 12:09:02,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:11:35,593 WARN L228 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 2520 DAG size of output: 2012 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:12:00,563 WARN L228 SmtUtils]: Spent 21.55s on a formula simplification. DAG size of input: 2523 DAG size of output: 2015 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:12:25,216 WARN L228 SmtUtils]: Spent 21.36s on a formula simplification. DAG size of input: 2529 DAG size of output: 2021 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:12:26,326 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 745 transitions and produced 586 states. [2022-03-04 12:12:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 12:12:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 12:12:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-04 12:12:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:12:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2022-03-04 12:12:26,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 12:12:26,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:12:26,548 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:12:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:12:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash -964943713, now seen corresponding path program 6 times [2022-03-04 12:12:26,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:12:26,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142801987] [2022-03-04 12:12:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:12:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:12:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:12:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 0 proven. 7325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:12:44,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:12:44,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142801987] [2022-03-04 12:12:44,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142801987] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:12:44,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399761326] [2022-03-04 12:12:44,835 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 12:12:44,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:12:44,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:12:44,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:12:44,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 12:12:45,454 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 63 check-sat command(s) [2022-03-04 12:12:45,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:12:45,463 WARN L261 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 489 conjunts are in the unsatisfiable core [2022-03-04 12:12:45,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:13:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 3 proven. 7318 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 12:13:01,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:13:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 0 proven. 7325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:13:29,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399761326] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:13:29,937 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:13:29,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 127, 129] total 320 [2022-03-04 12:13:29,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471631166] [2022-03-04 12:13:29,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:13:29,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 320 states [2022-03-04 12:13:29,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:13:29,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 320 interpolants. [2022-03-04 12:13:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17028, Invalid=85052, Unknown=0, NotChecked=0, Total=102080 [2022-03-04 12:13:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:13:29,945 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:13:29,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 320 states, 320 states have (on average 1.996875) internal successors, (639), 320 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:13:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 12:13:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 12:13:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-04 12:13:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:13:29,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 223 states. [2022-03-04 12:13:29,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:15:02,080 WARN L228 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 1121 DAG size of output: 720 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:15:09,088 WARN L228 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 1140 DAG size of output: 740 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:15:21,852 WARN L228 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 1138 DAG size of output: 738 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 12:15:40,254 WARN L228 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 1131 DAG size of output: 731 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-03-04 12:17:42,552 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:17:42,558 WARN L244 SmtUtils]: Removed 3 from assertion stack [2022-03-04 12:17:42,574 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:17:42,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 12:17:42,591 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:17:42,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:17:42,759 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1002 for 1789ms.. [2022-03-04 12:17:42,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 12:17:42,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 12:17:42,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 12:17:42,765 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-04 12:17:42,766 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:17:42,766 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:17:42,778 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:17:42 BasicIcfg [2022-03-04 12:17:42,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:17:42,778 INFO L158 Benchmark]: Toolchain (without parser) took 788150.90ms. Allocated memory was 170.9MB in the beginning and 685.8MB in the end (delta: 514.9MB). Free memory was 128.2MB in the beginning and 149.0MB in the end (delta: -20.8MB). Peak memory consumption was 534.9MB. Max. memory is 8.0GB. [2022-03-04 12:17:42,778 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 170.9MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:17:42,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 170.9MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:17:42,779 INFO L158 Benchmark]: Boogie Preprocessor took 10.27ms. Allocated memory is still 170.9MB. Free memory was 126.6MB in the beginning and 125.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:17:42,779 INFO L158 Benchmark]: RCFGBuilder took 169.37ms. Allocated memory is still 170.9MB. Free memory was 125.6MB in the beginning and 116.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-04 12:17:42,779 INFO L158 Benchmark]: TraceAbstraction took 787944.77ms. Allocated memory was 170.9MB in the beginning and 685.8MB in the end (delta: 514.9MB). Free memory was 116.4MB in the beginning and 149.0MB in the end (delta: -32.6MB). Peak memory consumption was 521.3MB. Max. memory is 8.0GB. [2022-03-04 12:17:42,780 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 170.9MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 170.9MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.27ms. Allocated memory is still 170.9MB. Free memory was 126.6MB in the beginning and 125.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 169.37ms. Allocated memory is still 170.9MB. Free memory was 125.6MB in the beginning and 116.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 787944.77ms. Allocated memory was 170.9MB in the beginning and 685.8MB in the end (delta: 514.9MB). Free memory was 116.4MB in the beginning and 149.0MB in the end (delta: -32.6MB). Peak memory consumption was 521.3MB. 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1002 for 1789ms.. - 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1002 for 1789ms.. - 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1002 for 1789ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 787.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 504.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 755, 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, 2.5s SatisfiabilityAnalysisTime, 279.6s InterpolantComputationTime, 1532 NumberOfCodeBlocks, 1532 NumberOfCodeBlocksAsserted, 155 NumberOfCheckSat, 2280 ConstructedInterpolants, 0 QuantifiedInterpolants, 155432 SizeOfPredicates, 60 NumberOfNonLiveVariables, 1864 ConjunctsInSsa, 1108 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 6518/46242 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