/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/test/easy1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 12:26:09,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 12:26:09,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 12:26:09,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 12:26:09,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 12:26:09,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 12:26:09,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 12:26:09,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 12:26:09,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 12:26:09,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 12:26:09,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 12:26:09,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 12:26:09,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 12:26:09,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 12:26:09,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 12:26:09,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 12:26:09,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 12:26:09,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 12:26:09,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 12:26:09,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 12:26:09,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 12:26:09,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 12:26:09,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 12:26:09,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 12:26:09,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 12:26:09,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 12:26:09,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 12:26:09,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 12:26:09,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 12:26:09,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 12:26:09,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 12:26:09,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 12:26:09,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 12:26:09,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 12:26:09,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 12:26:09,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 12:26:09,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 12:26:09,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 12:26:09,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 12:26:09,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 12:26:09,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 12:26:09,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-20 12:26:09,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 12:26:09,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 12:26:09,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 12:26:09,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 12:26:09,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 12:26:09,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 12:26:09,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 12:26:09,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 12:26:09,553 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 12:26:09,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 12:26:09,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 12:26:09,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:26:09,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 12:26:09,555 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 12:26:09,556 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 12:26:09,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 12:26:09,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 12:26:09,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 12:26:09,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 12:26:09,779 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 12:26:09,781 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 12:26:09,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy1.wvr.bpl [2022-02-20 12:26:09,782 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy1.wvr.bpl' [2022-02-20 12:26:09,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 12:26:09,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 12:26:09,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 12:26:09,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 12:26:09,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 12:26:09,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,849 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 12:26:09,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 12:26:09,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 12:26:09,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 12:26:09,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 12:26:09,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 12:26:09,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 12:26:09,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 12:26:09,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 12:26:09,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/1) ... [2022-02-20 12:26:09,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:26:09,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:09,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 12:26:09,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 12:26:09,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 12:26:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 12:26:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 12:26:09,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 12:26:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 12:26:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 12:26:09,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 12:26:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 12:26:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 12:26:09,930 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 12:26:09,958 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 12:26:09,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 12:26:10,014 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 12:26:10,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 12:26:10,018 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 12:26:10,019 INFO L202 PluginConnector]: Adding new model easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:26:10 BoogieIcfgContainer [2022-02-20 12:26:10,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 12:26:10,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 12:26:10,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 12:26:10,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 12:26:10,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:09" (1/2) ... [2022-02-20 12:26:10,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c713d9 and model type easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:26:10, skipping insertion in model container [2022-02-20 12:26:10,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:26:10" (2/2) ... [2022-02-20 12:26:10,025 INFO L111 eAbstractionObserver]: Analyzing ICFG easy1.wvr.bpl [2022-02-20 12:26:10,028 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 12:26:10,028 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 12:26:10,028 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 12:26:10,028 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 12:26:10,046 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 12:26:10,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 12:26:10,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:10,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 12:26:10,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 12:26:10,092 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 12:26:10,097 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 12:26:10,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 12:26:10,269 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 150 transitions and produced 136 states. [2022-02-20 12:26:10,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 12:26:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:26:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1014042265, now seen corresponding path program 1 times [2022-02-20 12:26:10,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:26:10,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86090105] [2022-02-20 12:26:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:10,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:26:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 228 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 12:26:10,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:26:10,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86090105] [2022-02-20 12:26:10,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86090105] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:26:10,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054756032] [2022-02-20 12:26:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:10,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:10,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:10,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:26:10,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 12:26:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:10,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-20 12:26:10,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:26:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 48 proven. 231 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-20 12:26:11,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:26:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 28 proven. 253 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-20 12:26:11,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054756032] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:26:11,392 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:26:11,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 17] total 35 [2022-02-20 12:26:11,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098922767] [2022-02-20 12:26:11,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:26:11,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-20 12:26:11,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:26:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-20 12:26:11,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=892, Unknown=0, NotChecked=0, Total=1260 [2022-02-20 12:26:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:11,413 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:26:11,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 35 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:26:11,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:12,071 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 184 transitions and produced 152 states. [2022-02-20 12:26:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-20 12:26:12,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 12:26:12,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-20 12:26:12,298 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 12:26:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:26:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1107574795, now seen corresponding path program 2 times [2022-02-20 12:26:12,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:26:12,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277089174] [2022-02-20 12:26:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:26:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:12,663 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 225 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 12:26:12,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:26:12,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277089174] [2022-02-20 12:26:12,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277089174] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:26:12,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207317556] [2022-02-20 12:26:12,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 12:26:12,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:12,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:12,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:26:12,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 12:26:12,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 12:26:12,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:26:12,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-20 12:26:12,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:26:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 223 proven. 169 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-20 12:26:12,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:26:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 223 proven. 169 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-20 12:26:13,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207317556] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:26:13,186 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:26:13,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29, 29] total 44 [2022-02-20 12:26:13,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072667156] [2022-02-20 12:26:13,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:26:13,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-02-20 12:26:13,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:26:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-02-20 12:26:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=689, Invalid=1291, Unknown=0, NotChecked=0, Total=1980 [2022-02-20 12:26:13,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:13,189 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:26:13,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.2222222222222223) internal successors, (100), 44 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:26:13,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-20 12:26:13,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:13,616 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 289 transitions and produced 242 states. [2022-02-20 12:26:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-20 12:26:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:26:13,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 12:26:13,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:13,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 12:26:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:26:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1228282553, now seen corresponding path program 3 times [2022-02-20 12:26:13,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:26:13,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516321877] [2022-02-20 12:26:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:13,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:26:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 732 proven. 370 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 12:26:14,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:26:14,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516321877] [2022-02-20 12:26:14,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516321877] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:26:14,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181591633] [2022-02-20 12:26:14,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 12:26:14,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:14,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:26:14,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 12:26:14,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-20 12:26:14,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:26:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-20 12:26:14,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:26:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2022-02-20 12:26:14,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 12:26:14,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181591633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 12:26:14,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 12:26:14,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [42] total 49 [2022-02-20 12:26:14,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851221990] [2022-02-20 12:26:14,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 12:26:14,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-20 12:26:14,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:26:14,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-20 12:26:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=529, Invalid=1823, Unknown=0, NotChecked=0, Total=2352 [2022-02-20 12:26:14,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:14,818 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:26:14,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:26:14,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-20 12:26:14,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:26:14,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:28,301 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 20511 transitions and produced 12908 states. [2022-02-20 12:26:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-20 12:26:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:26:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 12:26:28,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 12:26:28,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:28,521 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 12:26:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:26:28,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1005606711, now seen corresponding path program 4 times [2022-02-20 12:26:28,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:26:28,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211325138] [2022-02-20 12:26:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:28,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:26:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 52925 backedges. 8439 proven. 40437 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2022-02-20 12:26:29,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:26:29,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211325138] [2022-02-20 12:26:29,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211325138] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:26:29,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308014927] [2022-02-20 12:26:29,882 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 12:26:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:29,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:26:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 12:26:30,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 12:26:30,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:26:30,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 313 conjunts are in the unsatisfiable core [2022-02-20 12:26:30,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:26:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 52925 backedges. 7919 proven. 41363 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2022-02-20 12:26:31,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:26:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 52925 backedges. 332 proven. 52590 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-20 12:26:46,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308014927] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:26:46,068 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:26:46,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 47, 313] total 341 [2022-02-20 12:26:46,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970338504] [2022-02-20 12:26:46,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:26:46,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 342 states [2022-02-20 12:26:46,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:26:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 342 interpolants. [2022-02-20 12:26:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3809, Invalid=112813, Unknown=0, NotChecked=0, Total=116622 [2022-02-20 12:26:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:46,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:26:46,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 342 states, 342 states have (on average 2.1783625730994154) internal successors, (745), 341 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:26:46,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-20 12:26:46,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:26:46,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 12:26:46,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:30:14,623 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 180144 transitions and produced 106279 states. [2022-02-20 12:30:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 12:30:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:30:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 12:30:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 357 states. [2022-02-20 12:30:14,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 12:30:14,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:30:14,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 12:30:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:30:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash -278840403, now seen corresponding path program 5 times [2022-02-20 12:30:14,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:30:14,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072413539] [2022-02-20 12:30:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:30:14,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:30:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:30:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 588757 backedges. 124161 proven. 441328 refuted. 0 times theorem prover too weak. 23268 trivial. 0 not checked. [2022-02-20 12:30:19,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:30:19,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072413539] [2022-02-20 12:30:19,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072413539] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:30:19,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998185484] [2022-02-20 12:30:19,882 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 12:30:19,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:30:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:30:19,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:30:19,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 12:30:24,014 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 689 check-sat command(s) [2022-02-20 12:30:24,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:30:24,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 1071 conjunts are in the unsatisfiable core [2022-02-20 12:30:24,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:30:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 588757 backedges. 123551 proven. 442388 refuted. 0 times theorem prover too weak. 22818 trivial. 0 not checked. [2022-02-20 12:30:28,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:32:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 588757 backedges. 1273 proven. 587479 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-20 12:32:13,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998185484] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:32:13,936 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:32:13,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 66, 1071] total 1116 [2022-02-20 12:32:13,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398279242] [2022-02-20 12:32:13,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:32:13,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1117 states [2022-02-20 12:32:13,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:32:13,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1117 interpolants. [2022-02-20 12:32:14,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19321, Invalid=1227251, Unknown=0, NotChecked=0, Total=1246572 [2022-02-20 12:32:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:32:14,077 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:32:14,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1117 states, 1117 states have (on average 2.08325872873769) internal successors, (2327), 1116 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:32:14,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-20 12:32:14,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-20 12:32:14,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 12:32:14,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 357 states. [2022-02-20 12:32:14,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:32:24,730 WARN L228 SmtUtils]: Spent 9.08s on a formula simplification that was a NOOP. DAG size: 1726 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:32:35,279 WARN L228 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:32:43,558 WARN L228 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:32:54,136 WARN L228 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:02,633 WARN L228 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:12,012 WARN L228 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:20,754 WARN L228 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:30,391 WARN L228 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:38,101 WARN L228 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:46,511 WARN L228 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:33:54,124 WARN L228 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:04,395 WARN L228 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 1730 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:13,885 WARN L228 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:22,036 WARN L228 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:32,891 WARN L228 SmtUtils]: Spent 8.78s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:42,093 WARN L228 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 1730 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:34:52,243 WARN L228 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:02,120 WARN L228 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:10,752 WARN L228 SmtUtils]: Spent 6.82s on a formula simplification that was a NOOP. DAG size: 1729 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:20,328 WARN L228 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 1720 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:27,895 WARN L228 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 1679 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:36,747 WARN L228 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 1626 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:44,784 WARN L228 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 1581 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:35:52,163 WARN L228 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 1527 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:36:00,107 WARN L228 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 1483 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:37:32,159 WARN L228 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 1579 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:37:39,510 WARN L228 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 1624 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:37:47,403 WARN L228 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 1678 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:37:54,644 WARN L228 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 1719 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:02,227 WARN L228 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:09,373 WARN L228 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:18,702 WARN L228 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:25,683 WARN L228 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:32,665 WARN L228 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:40,428 WARN L228 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-20 12:38:49,061 WARN L228 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 1728 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-02-20 12:38:53,497 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 12:38:53,497 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 12:38:53,497 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 12:38:53,507 WARN L244 SmtUtils]: Removed 179 from assertion stack [2022-02-20 12:38:53,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 12:38:53,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:38:53,708 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1728 for 3557ms.. [2022-02-20 12:38:53,710 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 12:38:53,710 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 12:38:53,710 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 12:38:53,714 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-02-20 12:38:53,715 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 12:38:53,715 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 12:38:53,723 INFO L202 PluginConnector]: Adding new model easy1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:38:53 BasicIcfg [2022-02-20 12:38:53,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 12:38:53,724 INFO L158 Benchmark]: Toolchain (without parser) took 763922.71ms. Allocated memory was 202.4MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 166.4MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-02-20 12:38:53,724 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 12:38:53,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.12ms. Allocated memory is still 202.4MB. Free memory was 166.3MB in the beginning and 164.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 12:38:53,724 INFO L158 Benchmark]: Boogie Preprocessor took 10.75ms. Allocated memory is still 202.4MB. Free memory was 164.8MB in the beginning and 163.8MB in the end (delta: 940.5kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 12:38:53,724 INFO L158 Benchmark]: RCFGBuilder took 155.91ms. Allocated memory is still 202.4MB. Free memory was 163.7MB in the beginning and 155.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-20 12:38:53,725 INFO L158 Benchmark]: TraceAbstraction took 763702.95ms. Allocated memory was 202.4MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 155.0MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-02-20 12:38:53,725 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 0.10ms. Allocated memory is still 202.4MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.12ms. Allocated memory is still 202.4MB. Free memory was 166.3MB in the beginning and 164.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.75ms. Allocated memory is still 202.4MB. Free memory was 164.8MB in the beginning and 163.8MB in the end (delta: 940.5kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 155.91ms. Allocated memory is still 202.4MB. Free memory was 163.7MB in the beginning and 155.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 763702.95ms. Allocated memory was 202.4MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 155.0MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 3.6GB. 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: 37]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1728 for 3557ms.. - TimeoutResultAtElement [Line: 32]: 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 1728 for 3557ms.. - TimeoutResultAtElement [Line: 32]: 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 1728 for 3557ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 763.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 622.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 635, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 132.7s InterpolantComputationTime, 6138 NumberOfCodeBlocks, 6054 NumberOfCodeBlocksAsserted, 702 NumberOfCheckSat, 9090 ConstructedInterpolants, 0 QuantifiedInterpolants, 49481 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4510 ConjunctsInSsa, 1437 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 322342/1929359 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 [2022-02-20 12:38:53,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0