/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line592.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:36:26,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:36:26,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:36:26,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 02:36:26,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 02:36:26,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 02:36:26,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 02:36:26,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 02:36:26,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 02:36:26,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 02:36:26,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 02:36:26,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 02:36:26,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 02:36:26,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 02:36:26,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 02:36:26,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 02:36:26,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 02:36:26,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 02:36:26,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 02:36:26,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 02:36:26,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 02:36:26,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 02:36:26,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 02:36:26,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 02:36:26,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 02:36:26,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 02:36:26,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 02:36:26,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 02:36:26,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:36:26,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:36:26,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:36:26,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:36:26,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:36:26,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:36:26,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:36:26,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:36:26,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:36:26,306 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:36:26,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:36:26,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:36:26,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:36:26,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:36:26,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:36:26,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:36:26,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:36:26,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:36:26,310 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:36:26,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:36:26,311 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:36:26,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:36:26,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:36:26,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:36:26,608 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:36:26,609 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:36:26,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line592.bpl [2022-10-04 02:36:26,611 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line592.bpl' [2022-10-04 02:36:26,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:36:26,674 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:36:26,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:36:26,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:36:26,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:36:26,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:36:26,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:36:26,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:36:26,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:36:26,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/1) ... [2022-10-04 02:36:26,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:36:26,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:26,813 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) [2022-10-04 02:36:26,815 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 [2022-10-04 02:36:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:36:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:36:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:36:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:36:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:36:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:36:26,852 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 02:36:26,978 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:36:26,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:36:27,631 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:36:27,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:36:27,654 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:36:27,657 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:36:27 BoogieIcfgContainer [2022-10-04 02:36:27,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:36:27,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:36:27,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:36:27,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:36:27,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:26" (1/2) ... [2022-10-04 02:36:27,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211e3af8 and model type ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:36:27, skipping insertion in model container [2022-10-04 02:36:27,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:36:27" (2/2) ... [2022-10-04 02:36:27,675 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line592.bpl [2022-10-04 02:36:27,687 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:36:27,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:36:27,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:36:27,696 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:36:27,865 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:36:27,916 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:27,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:27,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:27,918 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) [2022-10-04 02:36:27,930 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 [2022-10-04 02:36:27,986 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:27,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:36:28,000 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5041fd7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:28,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:28,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:36:28,494 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:28,496 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-04 02:36:28,505 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:28,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:28,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:28,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:28,520 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:28,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:36:28,521 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5041fd7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:28,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:28,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-04 02:36:28,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:36:28,534 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:28,537 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-04 02:36:28,549 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:28,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:28,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:28,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-04 02:36:28,601 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:28,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:36:28,602 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5041fd7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:28,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:28,602 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 02:36:28,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:36:28,603 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:28,604 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-04 02:36:28,609 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:28,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:28,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-04 02:36:28,625 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:28,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:36:28,626 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5041fd7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:28,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:28,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:36:28,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:36:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash 638353009, now seen corresponding path program 1 times [2022-10-04 02:36:28,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:36:28,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735958482] [2022-10-04 02:36:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:36:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:36:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:36:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:36:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:36:29,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735958482] [2022-10-04 02:36:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735958482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:36:29,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:36:29,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:36:29,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731603674] [2022-10-04 02:36:29,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:36:29,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:36:29,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:36:29,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:36:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:36:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:29,175 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:36:29,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.5) internal successors, (205), 2 states have internal predecessors, (205), 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) [2022-10-04 02:36:29,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:36:29,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:36:29,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:36:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2062654075, now seen corresponding path program 1 times [2022-10-04 02:36:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:36:29,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638771886] [2022-10-04 02:36:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:36:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:36:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:36:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:36:29,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:36:29,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638771886] [2022-10-04 02:36:29,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638771886] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:36:29,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:36:29,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-04 02:36:29,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255926463] [2022-10-04 02:36:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:36:29,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-04 02:36:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:36:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-04 02:36:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-04 02:36:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:29,554 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:36:29,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.583333333333332) internal successors, (223), 13 states have internal predecessors, (223), 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) [2022-10-04 02:36:29,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:29,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:36:51,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:36:51,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:36:51,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:36:51,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1571630379, now seen corresponding path program 1 times [2022-10-04 02:36:51,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:36:51,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561119087] [2022-10-04 02:36:51,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:36:51,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:36:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:36:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-04 02:36:51,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:36:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561119087] [2022-10-04 02:36:51,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561119087] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:36:51,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:36:51,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 02:36:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927517618] [2022-10-04 02:36:51,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:36:51,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 02:36:51,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:36:51,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 02:36:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-04 02:36:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:51,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:36:51,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.83333333333333) internal successors, (605), 6 states have internal predecessors, (605), 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) [2022-10-04 02:36:51,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:51,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:36:51,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:10,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 02:37:10,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash -131308534, now seen corresponding path program 1 times [2022-10-04 02:37:10,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:10,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531903395] [2022-10-04 02:37:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:10,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 328 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-04 02:37:10,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531903395] [2022-10-04 02:37:10,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531903395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73448895] [2022-10-04 02:37:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:10,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:10,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:10,446 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) [2022-10-04 02:37:10,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-04 02:37:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:11,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-04 02:37:11,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 328 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-04 02:37:11,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:37:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 328 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-04 02:37:11,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73448895] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:37:11,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:37:11,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-04 02:37:11,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338879730] [2022-10-04 02:37:11,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:37:11,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 02:37:11,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:11,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 02:37:11,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-04 02:37:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:11,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:11,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 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) [2022-10-04 02:37:11,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:11,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:11,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:11,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:59,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-04 02:37:59,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:59,649 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:59,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1090509313, now seen corresponding path program 1 times [2022-10-04 02:37:59,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:59,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296683090] [2022-10-04 02:37:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:59,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:38:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1930 backedges. 818 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-10-04 02:38:00,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:38:00,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296683090] [2022-10-04 02:38:00,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296683090] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:38:00,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:38:00,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 02:38:00,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404651505] [2022-10-04 02:38:00,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:38:00,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 02:38:00,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:38:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 02:38:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 02:38:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:00,234 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:38:00,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 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) [2022-10-04 02:38:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:38:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:38:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:38:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:38:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:38:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:38:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:38:28,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-04 02:38:28,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:38:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:38:28,840 INFO L85 PathProgramCache]: Analyzing trace with hash 136587530, now seen corresponding path program 2 times [2022-10-04 02:38:28,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:38:28,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569388217] [2022-10-04 02:38:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:38:28,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:38:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:38:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1494 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1309 trivial. 0 not checked. [2022-10-04 02:38:29,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:38:29,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569388217] [2022-10-04 02:38:29,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569388217] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:38:29,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:38:29,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-04 02:38:29,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143986196] [2022-10-04 02:38:29,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:38:29,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 02:38:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:38:29,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 02:38:29,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-04 02:38:29,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:29,179 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:38:29,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 77.6) internal successors, (388), 6 states have internal predecessors, (388), 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) [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:38:29,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:39:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 02:39:01,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-04 02:39:01,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:39:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:39:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1173513308, now seen corresponding path program 1 times [2022-10-04 02:39:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:39:01,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078018416] [2022-10-04 02:39:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:39:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:39:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:39:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3032 backedges. 569 proven. 0 refuted. 0 times theorem prover too weak. 2463 trivial. 0 not checked. [2022-10-04 02:39:01,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:39:01,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078018416] [2022-10-04 02:39:01,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078018416] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:39:01,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:39:01,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 02:39:01,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249807755] [2022-10-04 02:39:01,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:39:01,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 02:39:01,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:39:01,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 02:39:01,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-04 02:39:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:39:01,943 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:39:01,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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) [2022-10-04 02:39:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 02:39:01,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:40:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 02:40:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:40:03,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-04 02:40:03,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:40:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:40:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1667156052, now seen corresponding path program 1 times [2022-10-04 02:40:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:40:03,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576831903] [2022-10-04 02:40:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:40:03,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:40:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:40:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1433 proven. 2 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2022-10-04 02:40:04,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:40:04,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576831903] [2022-10-04 02:40:04,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576831903] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:40:04,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429269143] [2022-10-04 02:40:04,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:40:04,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:40:04,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:40:04,685 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) [2022-10-04 02:40:04,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-04 02:40:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:40:05,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-04 02:40:05,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:40:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1738 proven. 454 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-10-04 02:40:05,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:40:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1738 proven. 454 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-10-04 02:40:06,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429269143] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:40:06,713 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:40:06,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 12 [2022-10-04 02:40:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355368601] [2022-10-04 02:40:06,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:40:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-04 02:40:06,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:40:06,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-04 02:40:06,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-10-04 02:40:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:40:06,720 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:40:06,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:40:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-10-04 02:44:59,724 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:44:59,724 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 [2022-10-04 02:44:59,733 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 [2022-10-04 02:44:59,733 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:44:59,733 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 [2022-10-04 02:44:59,734 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:44:59,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-04 02:44:59,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:44:59,948 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-10-04 02:44:59,948 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:44:59,950 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-10-04 02:44:59,951 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was TIMEOUT (4/4) [2022-10-04 02:44:59,954 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 02:44:59,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 02:44:59,959 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:44:59 BasicIcfg [2022-10-04 02:44:59,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 02:44:59,960 INFO L158 Benchmark]: Toolchain (without parser) took 513285.56ms. Allocated memory was 186.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 142.4MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-10-04 02:44:59,960 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 02:44:59,960 INFO L158 Benchmark]: Boogie Preprocessor took 83.39ms. Allocated memory is still 186.6MB. Free memory was 142.3MB in the beginning and 138.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-04 02:44:59,960 INFO L158 Benchmark]: RCFGBuilder took 893.42ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 138.4MB in the end (delta: 290.8kB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2022-10-04 02:44:59,961 INFO L158 Benchmark]: TraceAbstraction took 512300.16ms. Allocated memory was 186.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 137.8MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-10-04 02:44:59,962 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 0.18ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 83.39ms. Allocated memory is still 186.6MB. Free memory was 142.3MB in the beginning and 138.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 893.42ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 138.4MB in the end (delta: 290.8kB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. * TraceAbstraction took 512300.16ms. Allocated memory was 186.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 137.8MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2770, positive: 2611, positive conditional: 2611, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2770, positive: 2611, positive conditional: 2611, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2634, positive: 2611, positive conditional: 0, positive unconditional: 2611, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2568, positive: 2545, positive conditional: 0, positive unconditional: 2545, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2634, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2568, unknown conditional: 0, unknown unconditional: 2568] , Statistics on independence cache: Total cache size (in pairs): 2568, Positive cache size: 2545, Positive conditional cache size: 0, Positive unconditional cache size: 2545, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Independence queries for same thread: 136, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.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] , IndependenceRelationWithAbstraction.Statistics on underlying relation: 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: 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: 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] , 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, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.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] , IndependenceRelationWithAbstraction.Statistics on underlying relation: 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: 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: 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] , 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, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 146, positive: 142, positive conditional: 142, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 199, positive: 196, positive conditional: 196, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 7, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1002196, positive: 978729, positive conditional: 978729, positive unconditional: 0, negative: 23467, negative conditional: 23467, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 28333, Positive cache size: 28258, Positive conditional cache size: 0, Positive unconditional cache size: 28258, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Independence queries for same thread: 21958, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1381155, positive: 1348175, positive conditional: 1348175, positive unconditional: 0, negative: 32980, negative conditional: 32980, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 32259, Positive cache size: 32178, Positive conditional cache size: 0, Positive unconditional cache size: 32178, Negative cache size: 81, Negative conditional cache size: 0, Negative unconditional cache size: 81, Independence queries for same thread: 52718, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3643357, positive: 3554697, positive conditional: 3554697, positive unconditional: 0, negative: 88660, negative conditional: 88660, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 34151, Positive cache size: 34066, Positive conditional cache size: 0, Positive unconditional cache size: 34066, Negative cache size: 85, Negative conditional cache size: 0, Negative unconditional cache size: 85, Independence queries for same thread: 134859, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2420257, positive: 2360220, positive conditional: 2360220, positive unconditional: 0, negative: 60037, negative conditional: 60037, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 34349, Positive cache size: 34263, Positive conditional cache size: 0, Positive unconditional cache size: 34263, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Independence queries for same thread: 190614, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2429834, positive: 2369393, positive conditional: 2369393, positive unconditional: 0, negative: 60441, negative conditional: 60441, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 36713, Positive cache size: 36617, Positive conditional cache size: 0, Positive unconditional cache size: 36617, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Independence queries for same thread: 246760, Statistics for Abstraction: - StatisticsResult: Independence relation #8 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3840832, positive: 3736082, positive conditional: 3736082, positive unconditional: 0, negative: 104750, negative conditional: 104750, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 38899, Positive cache size: 38803, Positive conditional cache size: 0, Positive unconditional cache size: 38803, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Independence queries for same thread: 345385, Statistics for Abstraction: - StatisticsResult: Independence relation #9 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 11275993, positive: 10873138, positive conditional: 10873138, positive unconditional: 0, negative: 402855, negative conditional: 402855, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25993969, positive: 25220772, positive conditional: 25220772, positive unconditional: 0, negative: 773197, negative conditional: 773197, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25261370, positive: 25220772, positive conditional: 0, positive unconditional: 25220772, negative: 40598, negative conditional: 0, negative unconditional: 40598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39539, positive: 39443, positive conditional: 0, positive unconditional: 39443, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25261370, positive: 25181329, positive conditional: 0, positive unconditional: 25181329, negative: 40502, negative conditional: 0, negative unconditional: 40502, unknown: 39539, unknown conditional: 0, unknown unconditional: 39539] , Statistics on independence cache: Total cache size (in pairs): 39539, Positive cache size: 39443, Positive conditional cache size: 0, Positive unconditional cache size: 39443, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Independence queries for same thread: 732599, Statistics for Abstraction: - TimeoutResultAtElement [Line: 592]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: writer_fnErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: writer_fnErr0ASSERT_VIOLATIONASSERT with 2 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 511.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 503.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 71, 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: 0.7s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 8353 NumberOfCodeBlocks, 8353 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 10344 ConstructedInterpolants, 0 QuantifiedInterpolants, 16605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4380 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 16237/17150 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