/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/three-array-min.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:23:41,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:23:41,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:23:41,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:23:41,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:23:41,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:23:41,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:23:41,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:23:41,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:23:41,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:23:41,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:23:41,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:23:41,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:23:41,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:23:41,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:23:41,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:23:41,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:23:41,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:23:41,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:23:41,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:23:41,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:23:41,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:23:41,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:23:41,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:23:41,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-02 10:23:41,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-02 10:23:41,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-02 10:23:41,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-02 10:23:41,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-02 10:23:41,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-02 10:23:41,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 10:23:41,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 10:23:41,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 10:23:41,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 10:23:41,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 10:23:41,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 10:23:41,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 10:23:41,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 10:23:41,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:23:41,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:23:41,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:23:41,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-02 10:23:41,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:23:41,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:23:41,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:23:41,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:23:41,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:23:41,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:23:41,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:23:41,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:23:41,679 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:23:41,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:23:41,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:23:41,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:23:41,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:23:41,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:23:41,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:23:41,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:23:41,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:23:41,682 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:23:41,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:23:41,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:23:41,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:23:41,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:23:41,873 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:23:41,874 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:23:41,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl [2022-03-02 10:23:41,875 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl' [2022-03-02 10:23:41,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:23:41,892 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:23:41,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:23:41,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:23:41,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:23:41,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,917 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:23:41,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:23:41,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:23:41,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:23:41,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:23:41,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:23:41,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:23:41,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:23:41,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:23:41,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/1) ... [2022-03-02 10:23:41,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:23:41,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:23:41,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 10:23:41,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 10:23:41,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:23:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:23:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:23:41,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:23:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:23:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:23:41,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:23:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:23:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:23:41,991 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 10:23:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 10:23:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 10:23:41,991 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:23:42,028 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:23:42,029 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:23:42,110 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:23:42,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:23:42,123 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:23:42,124 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:23:42 BoogieIcfgContainer [2022-03-02 10:23:42,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:23:42,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:23:42,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:23:42,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:23:42,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:23:41" (1/2) ... [2022-03-02 10:23:42,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a884605 and model type three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:23:42, skipping insertion in model container [2022-03-02 10:23:42,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:23:42" (2/2) ... [2022-03-02 10:23:42,129 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-min.wvr.bpl [2022-03-02 10:23:42,132 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:23:42,132 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:23:42,133 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:23:42,133 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:23:42,185 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 10:23:42,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:23:42,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:23:42,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 10:23:42,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 10:23:42,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:23:42,249 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 10:23:42,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 10:23:42,496 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 438 transitions and produced 402 states. [2022-03-02 10:23:42,498 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:23:42,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:23:42,505 INFO L85 PathProgramCache]: Analyzing trace with hash 855878238, now seen corresponding path program 1 times [2022-03-02 10:23:42,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:23:42,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525475945] [2022-03-02 10:23:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:23:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:23:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:23:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 247 proven. 1093 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-02 10:23:43,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:23:43,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525475945] [2022-03-02 10:23:43,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525475945] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:23:43,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250146755] [2022-03-02 10:23:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:23:43,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:23:43,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:23:43,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:23:43,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:23:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:23:43,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 10:23:43,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:23:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 1147 proven. 4 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-03-02 10:23:43,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:23:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 1147 proven. 4 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-03-02 10:23:44,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250146755] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:23:44,267 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:23:44,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 19] total 47 [2022-03-02 10:23:44,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677782225] [2022-03-02 10:23:44,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:23:44,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-02 10:23:44,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:23:44,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-02 10:23:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=664, Invalid=1592, Unknown=0, NotChecked=0, Total=2256 [2022-03-02 10:23:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:23:44,291 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:23:44,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.5) internal successors, (168), 47 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:23:44,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:23:46,810 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 892 transitions and produced 814 states. [2022-03-02 10:23:46,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-03-02 10:23:46,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:23:47,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 10:23:47,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:23:47,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:23:47,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1514623025, now seen corresponding path program 1 times [2022-03-02 10:23:47,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:23:47,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914690840] [2022-03-02 10:23:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:23:47,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:23:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:23:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 275 proven. 3951 refuted. 0 times theorem prover too weak. 1501 trivial. 0 not checked. [2022-03-02 10:23:47,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:23:47,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914690840] [2022-03-02 10:23:47,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914690840] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:23:47,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065368439] [2022-03-02 10:23:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:23:47,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:23:47,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:23:47,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:23:47,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:23:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:23:47,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-02 10:23:47,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:23:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 2249 proven. 289 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2022-03-02 10:23:49,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:23:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 2249 proven. 289 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2022-03-02 10:23:49,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065368439] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:23:49,495 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:23:49,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 73 [2022-03-02 10:23:49,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128554594] [2022-03-02 10:23:49,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:23:49,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-03-02 10:23:49,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:23:49,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-03-02 10:23:49,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=659, Invalid=4743, Unknown=0, NotChecked=0, Total=5402 [2022-03-02 10:23:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:23:49,499 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:23:49,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.6216216216216215) internal successors, (194), 73 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:23:49,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-03-02 10:23:49,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:23:54,062 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3328 transitions and produced 2919 states. [2022-03-02 10:23:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2022-03-02 10:23:54,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-03-02 10:23:54,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:23:54,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:23:54,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:23:54,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:23:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash -367486287, now seen corresponding path program 2 times [2022-03-02 10:23:54,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:23:54,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877020685] [2022-03-02 10:23:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:23:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:23:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:23:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 57153 backedges. 6584 proven. 12 refuted. 0 times theorem prover too weak. 50557 trivial. 0 not checked. [2022-03-02 10:23:55,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:23:55,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877020685] [2022-03-02 10:23:55,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877020685] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:23:55,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808103010] [2022-03-02 10:23:55,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:23:55,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:23:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:23:55,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:23:55,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:23:55,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:23:55,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:23:55,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 311 conjunts are in the unsatisfiable core [2022-03-02 10:23:55,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:24:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 57153 backedges. 26010 proven. 30448 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2022-03-02 10:24:13,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:24:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 57153 backedges. 26010 proven. 30448 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2022-03-02 10:24:15,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808103010] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:24:15,040 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:24:15,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 267, 267] total 275 [2022-03-02 10:24:15,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938797173] [2022-03-02 10:24:15,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:24:15,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 275 states [2022-03-02 10:24:15,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:24:15,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 275 interpolants. [2022-03-02 10:24:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18113, Invalid=57237, Unknown=0, NotChecked=0, Total=75350 [2022-03-02 10:24:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:24:15,057 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:24:15,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 275 states, 275 states have (on average 2.5672727272727274) internal successors, (706), 275 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:24:15,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. [2022-03-02 10:24:15,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2022-03-02 10:24:15,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:24:46,831 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4499 transitions and produced 3668 states. [2022-03-02 10:24:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2022-03-02 10:24:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-03-02 10:24:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 414 states. [2022-03-02 10:24:46,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 10:24:47,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:24:47,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:24:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:24:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -515781608, now seen corresponding path program 2 times [2022-03-02 10:24:47,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:24:47,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183286011] [2022-03-02 10:24:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:24:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:24:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:25:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 102596 backedges. 71922 proven. 28745 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-03-02 10:25:11,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:25:11,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183286011] [2022-03-02 10:25:11,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183286011] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:25:11,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118653209] [2022-03-02 10:25:11,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:25:11,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:25:11,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:25:11,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:25:11,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 10:25:11,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:25:11,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:25:11,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 3472 conjuncts, 441 conjunts are in the unsatisfiable core [2022-03-02 10:25:11,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:26:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 102596 backedges. 72857 proven. 29644 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-03-02 10:26:21,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:27:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 102596 backedges. 72857 proven. 29644 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-03-02 10:27:06,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118653209] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:27:06,056 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:27:06,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [289, 391, 391] total 875 [2022-03-02 10:27:06,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022545746] [2022-03-02 10:27:06,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:27:06,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 876 states [2022-03-02 10:27:06,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:27:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 876 interpolants. [2022-03-02 10:27:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124197, Invalid=642303, Unknown=0, NotChecked=0, Total=766500 [2022-03-02 10:27:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:27:06,117 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:27:06,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 876 states, 876 states have (on average 2.4726027397260273) internal successors, (2166), 875 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:27:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. [2022-03-02 10:27:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2022-03-02 10:27:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 414 states. [2022-03-02 10:27:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-02 10:36:10,008 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:36:10,008 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:36:10,008 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:36:11,051 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 [2022-03-02 10:36:11,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-03-02 10:36:11,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 10:36:11,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-02 10:36:11,307 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-03-02 10:36:11,309 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 10:36:11,310 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 10:36:11,310 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 10:36:11,310 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 10:36:11,314 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2] [2022-03-02 10:36:11,315 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:36:11,315 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:36:11,317 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:36:11 BasicIcfg [2022-03-02 10:36:11,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:36:11,317 INFO L158 Benchmark]: Toolchain (without parser) took 749425.08ms. Allocated memory was 187.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 153.0MB in the beginning and 1.1GB in the end (delta: -981.9MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-02 10:36:11,318 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 187.7MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:36:11,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.03ms. Allocated memory is still 187.7MB. Free memory was 153.0MB in the beginning and 151.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:36:11,318 INFO L158 Benchmark]: Boogie Preprocessor took 16.49ms. Allocated memory is still 187.7MB. Free memory was 151.4MB in the beginning and 150.5MB in the end (delta: 947.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:36:11,318 INFO L158 Benchmark]: RCFGBuilder took 187.40ms. Allocated memory is still 187.7MB. Free memory was 150.5MB in the beginning and 140.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 10:36:11,319 INFO L158 Benchmark]: TraceAbstraction took 749191.60ms. Allocated memory was 187.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 140.0MB in the beginning and 1.1GB in the end (delta: -994.9MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-02 10:36:11,320 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 187.7MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.03ms. Allocated memory is still 187.7MB. Free memory was 153.0MB in the beginning and 151.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.49ms. Allocated memory is still 187.7MB. Free memory was 151.4MB in the beginning and 150.5MB in the end (delta: 947.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 187.40ms. Allocated memory is still 187.7MB. Free memory was 150.5MB in the beginning and 140.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 749191.60ms. Allocated memory was 187.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 140.0MB in the beginning and 1.1GB in the end (delta: -994.9MB). Peak memory consumption was 1.8GB. 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: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 749.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 584.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1890, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 160.7s InterpolantComputationTime, 4214 NumberOfCodeBlocks, 4214 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 6309 ConstructedInterpolants, 0 QuantifiedInterpolants, 25939 SizeOfPredicates, 8 NumberOfNonLiveVariables, 7392 ConjunctsInSsa, 816 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 346342/500913 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