/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_2w1r-1.line592.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-21 09:28:34,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-21 09:28:34,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-21 09:28:34,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-21 09:28:34,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-21 09:28:34,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-21 09:28:34,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-21 09:28:34,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-21 09:28:34,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-21 09:28:34,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-21 09:28:34,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-21 09:28:34,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-21 09:28:34,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-21 09:28:34,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-21 09:28:34,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-21 09:28:34,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-21 09:28:34,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-21 09:28:34,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-21 09:28:34,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-21 09:28:34,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-21 09:28:34,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-21 09:28:34,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-21 09:28:34,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-21 09:28:34,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-21 09:28:34,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-21 09:28:34,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-21 09:28:34,656 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-21 09:28:34,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-21 09:28:34,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-21 09:28:34,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-21 09:28:34,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-21 09:28:34,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-21 09:28:34,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-21 09:28:34,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-21 09:28:34,658 INFO L138 SettingsManager]: * Use SBE=true [2022-10-21 09:28:34,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-21 09:28:34,659 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-21 09:28:34,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-21 09:28:34,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-21 09:28:34,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-21 09:28:34,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-21 09:28:34,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-21 09:28:34,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-21 09:28:34,662 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-21 09:28:34,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-21 09:28:34,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-21 09:28:34,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 09:28:34,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-21 09:28:34,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-21 09:28:34,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-21 09:28:34,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-21 09:28:34,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-21 09:28:34,665 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-21 09:28:34,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-21 09:28:34,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-21 09:28:34,665 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-21 09:28:34,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-21 09:28:34,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-21 09:28:34,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-21 09:28:34,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-21 09:28:34,988 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-21 09:28:34,989 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-21 09:28:34,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_2w1r-1.line592.bpl [2022-10-21 09:28:34,991 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_2w1r-1.line592.bpl' [2022-10-21 09:28:35,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-21 09:28:35,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-21 09:28:35,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-21 09:28:35,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-21 09:28:35,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-21 09:28:35,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,158 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-21 09:28:35,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-21 09:28:35,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-21 09:28:35,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-21 09:28:35,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-21 09:28:35,167 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,167 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,185 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,186 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,208 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,212 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,214 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 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-21 09:28:35,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-21 09:28:35,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-21 09:28:35,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-21 09:28:35,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 09:28:35" (1/1) ... [2022-10-21 09:28:35,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 09:28:35,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 09:28:35,257 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) [2022-10-21 09:28:35,263 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 [2022-10-21 09:28:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-21 09:28:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-21 09:28:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-21 09:28:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-21 09:28:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-21 09:28:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-21 09:28:35,288 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-21 09:28:35,409 INFO L234 CfgBuilder]: Building ICFG [2022-10-21 09:28:35,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-21 09:28:36,014 INFO L275 CfgBuilder]: Performing block encoding [2022-10-21 09:28:36,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-21 09:28:36,033 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-21 09:28:36,036 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:28:36 BoogieIcfgContainer [2022-10-21 09:28:36,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-21 09:28:36,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-21 09:28:36,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-21 09:28:36,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-21 09:28:36,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 09:28:35" (1/2) ... [2022-10-21 09:28:36,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1bd80d and model type ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:28:36, skipping insertion in model container [2022-10-21 09:28:36,043 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 21.10 09:28:36" (2/2) ... [2022-10-21 09:28:36,047 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line592.bpl [2022-10-21 09:28:36,054 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-21 09:28:36,061 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-21 09:28:36,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-21 09:28:36,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-21 09:28:36,188 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-21 09:28:36,241 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 09:28:36,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 09:28:36,246 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) [2022-10-21 09:28:36,264 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 [2022-10-21 09:28:36,295 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 09:28:36,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 09:28:36,311 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;@2a7b4a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 09:28:36,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 09:28:36,697 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 09:28:36,698 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-21 09:28:36,714 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 09:28:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 09:28:36,716 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) [2022-10-21 09:28:36,717 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 [2022-10-21 09:28:36,721 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 09:28:36,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 09:28:36,722 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;@2a7b4a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 09:28:36,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 09:28:36,729 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 09:28:36,730 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-21 09:28:36,734 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 09:28:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 09:28:36,749 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) [2022-10-21 09:28:36,766 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 09:28:36,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-21 09:28:36,767 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;@2a7b4a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 09:28:36,767 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-21 09:28:36,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-21 09:28:36,768 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 09:28:36,769 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-21 09:28:36,775 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 09:28:36,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 09:28:36,795 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) [2022-10-21 09:28:36,800 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 [2022-10-21 09:28:36,807 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 09:28:36,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-21 09:28:36,808 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;@2a7b4a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 09:28:36,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 09:28:36,817 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 [2022-10-21 09:28:36,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:28:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:28:36,838 INFO L85 PathProgramCache]: Analyzing trace with hash 638353009, now seen corresponding path program 1 times [2022-10-21 09:28:36,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:28:36,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783796414] [2022-10-21 09:28:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:28:36,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:28:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:28:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 09:28:37,119 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:28:37,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783796414] [2022-10-21 09:28:37,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783796414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:28:37,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:28:37,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-21 09:28:37,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957869937] [2022-10-21 09:28:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:28:37,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-21 09:28:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:28:37,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-21 09:28:37,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-21 09:28:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:28:37,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:28:37,171 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) [2022-10-21 09:28:37,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:28:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:28:37,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-21 09:28:37,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:28:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:28:37,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2062654075, now seen corresponding path program 1 times [2022-10-21 09:28:37,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:28:37,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117574394] [2022-10-21 09:28:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:28:37,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:28:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:28:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 09:28:37,581 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:28:37,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117574394] [2022-10-21 09:28:37,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117574394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:28:37,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:28:37,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-21 09:28:37,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864911723] [2022-10-21 09:28:37,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:28:37,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-21 09:28:37,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:28:37,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-21 09:28:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-21 09:28:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:28:37,584 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:28:37,584 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) [2022-10-21 09:28:37,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:28:37,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:04,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-21 09:29:04,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:29:04,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:29:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1001742564, now seen corresponding path program 1 times [2022-10-21 09:29:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:29:04,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239563288] [2022-10-21 09:29:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:29:04,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:29:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:29:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2065 backedges. 985 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-10-21 09:29:04,502 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:29:04,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239563288] [2022-10-21 09:29:04,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239563288] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:29:04,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:29:04,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 09:29:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111300579] [2022-10-21 09:29:04,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:29:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 09:29:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:29:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 09:29:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-21 09:29:04,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:04,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:29:04,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2022-10-21 09:29:04,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:04,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:04,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:29:26,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-21 09:29:26,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:29:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:29:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1363533921, now seen corresponding path program 2 times [2022-10-21 09:29:26,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:29:26,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162709605] [2022-10-21 09:29:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:29:26,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:29:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:29:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2022-10-21 09:29:26,692 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:29:26,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162709605] [2022-10-21 09:29:26,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162709605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:29:26,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:29:26,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-21 09:29:26,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104181337] [2022-10-21 09:29:26,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:29:26,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 09:29:26,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:29:26,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 09:29:26,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-21 09:29:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:26,881 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:29:26,882 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) [2022-10-21 09:29:26,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:26,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:26,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:29:26,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:29:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:29:38,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-21 09:29:38,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:29:38,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:29:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1411257485, now seen corresponding path program 3 times [2022-10-21 09:29:38,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:29:38,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36753242] [2022-10-21 09:29:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:29:38,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:29:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:29:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 628 proven. 1 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-10-21 09:29:38,242 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:29:38,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36753242] [2022-10-21 09:29:38,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36753242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 09:29:38,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 09:29:38,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-21 09:29:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182772742] [2022-10-21 09:29:38,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 09:29:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 09:29:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:29:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 09:29:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-21 09:29:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:38,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:29:38,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2022-10-21 09:29:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:29:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:29:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:29:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:29:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:30:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:30:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:02,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-21 09:30:02,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:30:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:30:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1811238058, now seen corresponding path program 4 times [2022-10-21 09:30:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:30:02,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411865152] [2022-10-21 09:30:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:30:02,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:30:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:30:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 932 trivial. 0 not checked. [2022-10-21 09:30:03,289 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:30:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411865152] [2022-10-21 09:30:03,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411865152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:30:03,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:30:03,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-21 09:30:03,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47777118] [2022-10-21 09:30:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:30:03,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 09:30:03,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:30:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 09:30:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-21 09:30:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:03,297 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:30:03,298 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) [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:03,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:30:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:30:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:30:30,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-21 09:30:30,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:30:30,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:30:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash -731143902, now seen corresponding path program 1 times [2022-10-21 09:30:30,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:30:30,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368750539] [2022-10-21 09:30:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:30:30,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:30:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:30:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 2107 trivial. 0 not checked. [2022-10-21 09:30:31,545 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:30:31,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368750539] [2022-10-21 09:30:31,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368750539] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 09:30:31,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 09:30:31,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-21 09:30:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627687340] [2022-10-21 09:30:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 09:30:31,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 09:30:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:30:31,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 09:30:31,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-21 09:30:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:31,551 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:30:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2022-10-21 09:30:31,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:30:31,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:31:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:31:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:31:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:31:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:31:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:17,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-21 09:31:17,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:31:17,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:31:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1956213561, now seen corresponding path program 1 times [2022-10-21 09:31:17,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:31:17,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746250919] [2022-10-21 09:31:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:31:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:31:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:31:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3452 backedges. 2108 proven. 77 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2022-10-21 09:31:18,530 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:31:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746250919] [2022-10-21 09:31:18,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746250919] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 09:31:18,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 09:31:18,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-21 09:31:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732772] [2022-10-21 09:31:18,530 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 09:31:18,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-21 09:31:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:31:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-21 09:31:18,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-21 09:31:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:31:18,533 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:31:18,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 150.2) internal successors, (751), 5 states have internal predecessors, (751), 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) [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:31:18,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:32:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:32:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:32:28,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-21 09:32:28,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:32:28,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:32:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash -518200976, now seen corresponding path program 2 times [2022-10-21 09:32:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:32:28,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613135120] [2022-10-21 09:32:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:32:28,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:32:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:32:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3603 backedges. 1804 proven. 414 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-10-21 09:32:29,341 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:32:29,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613135120] [2022-10-21 09:32:29,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613135120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 09:32:29,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 09:32:29,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-21 09:32:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629456431] [2022-10-21 09:32:29,341 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 09:32:29,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-21 09:32:29,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:32:29,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-21 09:32:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-21 09:32:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:32:29,346 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:32:29,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2022-10-21 09:32:29,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:32:29,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:32:29,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:32:29,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:32:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:32:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:32:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:35:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:35:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:35:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:35:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:34,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-21 09:35:34,719 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 09:35:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 09:35:34,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2048225638, now seen corresponding path program 3 times [2022-10-21 09:35:34,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 09:35:34,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632688743] [2022-10-21 09:35:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 09:35:34,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 09:35:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 09:35:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 2108 proven. 228 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2022-10-21 09:35:36,214 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 09:35:36,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632688743] [2022-10-21 09:35:36,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632688743] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 09:35:36,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 09:35:36,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-21 09:35:36,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068889392] [2022-10-21 09:35:36,215 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 09:35:36,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 09:35:36,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 09:35:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 09:35:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-21 09:35:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:35:36,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 09:35:36,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.66666666666666) internal successors, (826), 6 states have internal predecessors, (826), 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) [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 09:35:36,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-10-21 09:37:37,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-21 09:37:37,574 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-10-21 09:37:37,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-21 09:37:37,575 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1] [2022-10-21 09:37:37,575 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was TIMEOUT (4/4) [2022-10-21 09:37:37,577 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-21 09:37:37,577 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-21 09:37:37,581 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line592.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:37:37 BasicIcfg [2022-10-21 09:37:37,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-21 09:37:37,581 INFO L158 Benchmark]: Toolchain (without parser) took 542474.78ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 161.2MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. [2022-10-21 09:37:37,581 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 185.6MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-21 09:37:37,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.76ms. Allocated memory is still 185.6MB. Free memory was 161.1MB in the beginning and 159.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-21 09:37:37,582 INFO L158 Benchmark]: Boogie Preprocessor took 57.57ms. Allocated memory is still 185.6MB. Free memory was 159.3MB in the beginning and 156.5MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-21 09:37:37,582 INFO L158 Benchmark]: RCFGBuilder took 817.28ms. Allocated memory is still 185.6MB. Free memory was 156.4MB in the beginning and 150.1MB in the end (delta: 6.3MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-10-21 09:37:37,582 INFO L158 Benchmark]: TraceAbstraction took 541540.47ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 149.7MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. [2022-10-21 09:37:37,583 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 0.13ms. Allocated memory is still 185.6MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.76ms. Allocated memory is still 185.6MB. Free memory was 161.1MB in the beginning and 159.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.57ms. Allocated memory is still 185.6MB. Free memory was 159.3MB in the beginning and 156.5MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 817.28ms. Allocated memory is still 185.6MB. Free memory was 156.4MB in the beginning and 150.1MB in the end (delta: 6.3MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. * TraceAbstraction took 541540.47ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 149.7MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2787, positive: 2622, positive conditional: 2622, positive unconditional: 0, negative: 165, negative conditional: 165, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2651, positive: 2622, positive conditional: 2622, positive unconditional: 0, negative: 29, negative conditional: 29, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2651, positive: 2622, positive conditional: 2622, positive unconditional: 0, negative: 29, negative conditional: 29, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2651, positive: 2622, positive conditional: 0, positive unconditional: 2622, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2651, positive: 2622, positive conditional: 0, positive unconditional: 2622, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2651, positive: 2622, positive conditional: 0, positive unconditional: 2622, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2568, positive: 2541, positive conditional: 0, positive unconditional: 2541, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2568, positive: 2541, positive conditional: 0, positive unconditional: 2541, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2651, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 2568, unknown conditional: 0, unknown unconditional: 2568] , Statistics on independence cache: Total cache size (in pairs): 2568, Positive cache size: 2541, Positive conditional cache size: 0, Positive unconditional cache size: 2541, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 136 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 29743866, positive: 28808506, positive conditional: 28808506, positive unconditional: 0, negative: 935360, negative conditional: 935360, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28857819, positive: 28808506, positive conditional: 28808506, positive unconditional: 0, negative: 49313, negative conditional: 49313, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28857819, positive: 28808506, positive conditional: 28808506, positive unconditional: 0, negative: 49313, negative conditional: 49313, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29123296, positive: 28808506, positive conditional: 14, positive unconditional: 28808492, negative: 314790, negative conditional: 265463, negative unconditional: 49327, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29123296, positive: 28808506, positive conditional: 14, positive unconditional: 28808492, negative: 314790, negative conditional: 4097, negative unconditional: 310693, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29123296, positive: 28808506, positive conditional: 14, positive unconditional: 28808492, negative: 314790, negative conditional: 4097, negative unconditional: 310693, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32529, positive: 32385, positive conditional: 3, positive unconditional: 32382, negative: 144, negative conditional: 41, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32529, positive: 32382, positive conditional: 0, positive unconditional: 32382, negative: 147, negative conditional: 0, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 147, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 141, negative conditional: 39, negative unconditional: 102, unknown: 3, unknown conditional: 2, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 365, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 334, negative conditional: 113, negative unconditional: 221, unknown: 19, unknown conditional: 12, unknown unconditional: 7] ], Cache Queries: [ total: 29123296, positive: 28776121, positive conditional: 11, positive unconditional: 28776110, negative: 314646, negative conditional: 4056, negative unconditional: 310590, unknown: 32529, unknown conditional: 44, unknown unconditional: 32485] , Statistics on independence cache: Total cache size (in pairs): 32529, Positive cache size: 32385, Positive conditional cache size: 3, Positive unconditional cache size: 32382, Negative cache size: 144, Negative conditional cache size: 41, Negative unconditional cache size: 103, Eliminated conditions: 261366, Maximal queried relation: 9, Independence queries for same thread: 886047 - 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: 0.4s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.4s, 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: 540.8s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 535.1s, 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: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 9331 NumberOfCodeBlocks, 9331 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 9321 ConstructedInterpolants, 0 QuantifiedInterpolants, 14980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 18630/19350 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 [2022-10-21 09:37:37,595 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 [2022-10-21 09:37:37,595 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 [2022-10-21 09:37:37,595 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 Completed graceful shutdown