/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line603.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:36:52,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:36:52,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:36:53,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 02:36:53,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 02:36:53,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 02:36:53,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 02:36:53,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 02:36:53,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 02:36:53,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 02:36:53,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 02:36:53,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 02:36:53,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 02:36:53,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 02:36:53,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 02:36:53,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 02:36:53,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 02:36:53,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 02:36:53,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 02:36:53,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 02:36:53,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 02:36:53,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 02:36:53,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 02:36:53,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 02:36:53,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 02:36:53,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 02:36:53,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 02:36:53,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 02:36:53,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:36:53,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:36:53,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:36:53,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:36:53,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:36:53,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:36:53,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:36:53,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:36:53,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:36:53,104 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:36:53,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:36:53,104 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:36:53,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:36:53,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:36:53,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:36:53,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:36:53,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:36:53,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:36:53,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:36:53,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:36:53,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:36:53,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:36:53,109 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:36:53,109 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:36:53,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:36:53,109 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:36:53,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:36:53,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:36:53,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:36:53,360 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:36:53,361 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:36:53,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line603.bpl [2022-10-04 02:36:53,363 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line603.bpl' [2022-10-04 02:36:53,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:36:53,419 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:36:53,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:36:53,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:36:53,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:36:53,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:36:53,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:36:53,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:36:53,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:36:53,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/1) ... [2022-10-04 02:36:53,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:36:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:53,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:53,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-04 02:36:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:36:53,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:36:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:36:53,597 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:36:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:36:53,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:36:53,599 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 02:36:53,733 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:36:53,734 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:36:54,345 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:36:54,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:36:54,362 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:36:54,365 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:36:54 BoogieIcfgContainer [2022-10-04 02:36:54,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:36:54,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:36:54,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:36:54,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:36:54,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:36:53" (1/2) ... [2022-10-04 02:36:54,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc75a16 and model type ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:36:54, skipping insertion in model container [2022-10-04 02:36:54,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line603.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:36:54" (2/2) ... [2022-10-04 02:36:54,375 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line603.bpl [2022-10-04 02:36:54,381 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:36:54,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:36:54,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:36:54,388 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:36:54,517 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:36:54,564 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:54,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:54,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:54,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:54,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-04 02:36:54,602 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:54,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:36:54,614 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;@71aab08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:54,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:55,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:36:55,168 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:55,171 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-04 02:36:55,188 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:55,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:55,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:55,205 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:55,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:36:55,207 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;@71aab08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:55,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:55,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:36:55,214 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:55,214 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-04 02:36:55,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-04 02:36:55,224 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:55,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:55,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:55,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:55,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-04 02:36:55,279 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:55,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:36:55,305 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;@71aab08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:55,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:55,306 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 02:36:55,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:36:55,308 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:36:55,308 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-04 02:36:55,314 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:36:55,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:36:55,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:36:55,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:36:55,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-04 02:36:55,324 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:36:55,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:36:55,326 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;@71aab08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:36:55,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:36:55,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:36:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:36:55,425 INFO L85 PathProgramCache]: Analyzing trace with hash -746493524, now seen corresponding path program 1 times [2022-10-04 02:36:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:36:55,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193614786] [2022-10-04 02:36:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:36:55,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:36:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:36:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:36:55,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:36:55,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193614786] [2022-10-04 02:36:55,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193614786] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:36:55,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:36:55,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:36:55,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879357782] [2022-10-04 02:36:55,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:36:55,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:36:55,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:36:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:36:55,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:36:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:55,779 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:36:55,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:36:55,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:55,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:36:55,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:36:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:36:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1561691032, now seen corresponding path program 1 times [2022-10-04 02:36:55,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:36:55,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713710383] [2022-10-04 02:36:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:36:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:36:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:36:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:36:56,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:36:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713710383] [2022-10-04 02:36:56,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713710383] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:36:56,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:36:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-04 02:36:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429415127] [2022-10-04 02:36:56,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:36:56,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-04 02:36:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:36:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-04 02:36:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-04 02:36:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:56,192 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:36:56,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 13 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:36:56,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:36:56,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:01,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:37:01,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1898066269, now seen corresponding path program 1 times [2022-10-04 02:37:01,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:01,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311523283] [2022-10-04 02:37:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-04 02:37:01,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:01,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311523283] [2022-10-04 02:37:01,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311523283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:37:01,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:37:01,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 02:37:01,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211649709] [2022-10-04 02:37:01,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:37:01,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 02:37:01,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:01,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 02:37:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 02:37:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:01,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:01,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:01,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:01,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:01,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:07,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 02:37:07,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1008255433, now seen corresponding path program 1 times [2022-10-04 02:37:07,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:07,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814348589] [2022-10-04 02:37:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 165 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-04 02:37:07,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:07,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814348589] [2022-10-04 02:37:07,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814348589] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:07,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885860537] [2022-10-04 02:37:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:07,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:07,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:07,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:07,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-04 02:37:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:08,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-04 02:37:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 165 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-04 02:37:08,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:37:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 165 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-04 02:37:08,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885860537] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:37:08,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:37:08,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-04 02:37:08,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496876086] [2022-10-04 02:37:08,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:37:08,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 02:37:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 02:37:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-04 02:37:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:08,555 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:08,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:08,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:08,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:08,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:17,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:17,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-04 02:37:17,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:17,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:17,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1984906624, now seen corresponding path program 2 times [2022-10-04 02:37:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:17,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519558163] [2022-10-04 02:37:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:17,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-10-04 02:37:18,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:18,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519558163] [2022-10-04 02:37:18,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519558163] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:37:18,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:37:18,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 02:37:18,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863074745] [2022-10-04 02:37:18,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:37:18,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 02:37:18,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:18,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 02:37:18,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-04 02:37:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:18,151 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:18,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:18,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:18,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:18,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:18,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:18,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:18,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-04 02:37:18,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:18,617 INFO L85 PathProgramCache]: Analyzing trace with hash -509429802, now seen corresponding path program 1 times [2022-10-04 02:37:18,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:18,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948340607] [2022-10-04 02:37:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:37:18,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:18,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948340607] [2022-10-04 02:37:18,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948340607] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:18,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110349166] [2022-10-04 02:37:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:18,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:18,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:18,904 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:18,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-04 02:37:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:19,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-04 02:37:19,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:37:19,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:37:19,638 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-04 02:37:19,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2022-10-04 02:37:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:37:19,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110349166] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:37:19,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:37:19,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 14] total 19 [2022-10-04 02:37:19,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260347343] [2022-10-04 02:37:19,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:37:19,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-04 02:37:19,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:19,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-04 02:37:19,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-10-04 02:37:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:19,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:19,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 27.42105263157895) internal successors, (521), 20 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:19,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:19,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:19,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:19,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:19,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:19,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:21,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-04 02:37:21,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:21,563 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash 993362170, now seen corresponding path program 2 times [2022-10-04 02:37:21,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:21,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633834532] [2022-10-04 02:37:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:21,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-04 02:37:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633834532] [2022-10-04 02:37:21,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633834532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899107159] [2022-10-04 02:37:21,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 02:37:21,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:21,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:21,834 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:21,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-04 02:37:22,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-04 02:37:22,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 02:37:22,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-04 02:37:22,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-10-04 02:37:22,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 02:37:22,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899107159] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:37:22,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 02:37:22,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 16 [2022-10-04 02:37:22,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016383975] [2022-10-04 02:37:22,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:37:22,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-04 02:37:22,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:22,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-04 02:37:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-10-04 02:37:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:22,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:22,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 96.5) internal successors, (386), 5 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:22,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:22,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-04 02:37:23,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:23,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash 992636192, now seen corresponding path program 1 times [2022-10-04 02:37:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:23,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510771952] [2022-10-04 02:37:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:23,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-10-04 02:37:23,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:23,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510771952] [2022-10-04 02:37:23,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510771952] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:37:23,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:37:23,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 02:37:23,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102609377] [2022-10-04 02:37:23,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:37:23,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 02:37:23,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:23,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 02:37:23,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-04 02:37:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:23,388 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:23,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:23,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:23,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:23,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:23,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:23,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:23,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:23,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:23,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:37:24,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-04 02:37:24,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:24,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:24,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2072608624, now seen corresponding path program 1 times [2022-10-04 02:37:24,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:24,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112045991] [2022-10-04 02:37:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 378 proven. 2 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-10-04 02:37:24,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:24,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112045991] [2022-10-04 02:37:24,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112045991] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:24,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218998703] [2022-10-04 02:37:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:24,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:24,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:24,277 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:24,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-04 02:37:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:24,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-04 02:37:24,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 378 proven. 2 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-10-04 02:37:25,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:37:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 378 proven. 2 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-10-04 02:37:25,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218998703] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:37:25,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:37:25,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-04 02:37:25,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933601191] [2022-10-04 02:37:25,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:37:25,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 02:37:25,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 02:37:25,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-04 02:37:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:25,586 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:25,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:25,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:25,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:25,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:25,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:25,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:25,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:25,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:25,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:37:25,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:37:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:27,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-04 02:37:27,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-10-04 02:37:27,300 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:27,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:27,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1052193100, now seen corresponding path program 2 times [2022-10-04 02:37:27,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:27,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67679107] [2022-10-04 02:37:27,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:27,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 378 proven. 782 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-10-04 02:37:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67679107] [2022-10-04 02:37:27,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67679107] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015835844] [2022-10-04 02:37:27,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 02:37:27,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:27,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:27,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:27,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-04 02:37:28,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-04 02:37:28,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 02:37:28,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2364 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-04 02:37:28,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 378 proven. 782 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-10-04 02:37:29,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:37:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 378 proven. 782 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-10-04 02:37:30,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015835844] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:37:30,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:37:30,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-04 02:37:30,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894447704] [2022-10-04 02:37:30,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:37:30,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-04 02:37:30,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:37:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-04 02:37:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-04 02:37:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:30,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:37:30,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.84615384615384) internal successors, (1779), 13 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:30,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:37:30,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:30,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:37:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:37:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:37:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:37:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:37:34,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-04 02:37:34,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-04 02:37:34,402 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:37:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:37:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash 62403532, now seen corresponding path program 3 times [2022-10-04 02:37:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:37:34,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877388279] [2022-10-04 02:37:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:37:34,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:37:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:37:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6551 backedges. 378 proven. 5825 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-10-04 02:37:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:37:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877388279] [2022-10-04 02:37:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877388279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:37:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020420940] [2022-10-04 02:37:35,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-04 02:37:35,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:37:35,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:37:35,665 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:37:35,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-04 02:37:36,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-04 02:37:36,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 02:37:36,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2160 conjuncts, 135 conjunts are in the unsatisfiable core [2022-10-04 02:37:36,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:37:36,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-04 02:37:37,209 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-04 02:37:37,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-04 02:37:41,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-04 02:37:42,281 INFO L356 Elim1Store]: treesize reduction 14, result has 63.2 percent of original size [2022-10-04 02:37:42,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 44 [2022-10-04 02:37:43,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-04 02:37:43,842 INFO L356 Elim1Store]: treesize reduction 14, result has 63.2 percent of original size [2022-10-04 02:37:43,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 44 [2022-10-04 02:37:44,239 INFO L356 Elim1Store]: treesize reduction 14, result has 60.0 percent of original size [2022-10-04 02:37:44,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 44 [2022-10-04 02:37:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6551 backedges. 1470 proven. 2254 refuted. 0 times theorem prover too weak. 2827 trivial. 0 not checked. [2022-10-04 02:37:44,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:38:00,346 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse0 (select (store |c_reader_twoThread1of1ForFork1_write~int_old_#memory_int#1| |c_reader_twoThread1of1ForFork1_write~int_#ptr#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (or (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |reader_twoThread1of1ForFork1_~val~1#1|)))) is different from false [2022-10-04 02:38:00,414 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse0 (select (store |c_reader_twoThread1of1ForFork1_write~int_old_#memory_int#1| |c_reader_twoThread1of1ForFork1_ring_dequeue_~r#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |reader_twoThread1of1ForFork1_~val~1#1|)))) is different from false [2022-10-04 02:38:00,448 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse0 (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_ring_dequeue_~r#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |reader_twoThread1of1ForFork1_~val~1#1|)))) is different from false [2022-10-04 02:38:00,867 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse0 (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_ring_dequeue_#in~r#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |reader_twoThread1of1ForFork1_~val~1#1|)))) is different from false [2022-10-04 02:38:00,917 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse0 (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |reader_twoThread1of1ForFork1_~val~1#1|)))) is different from false [2022-10-04 02:38:16,735 WARN L833 $PredicateComparison]: unable to prove that (forall ((|reader_twoThread1of1ForFork1_~val~1#1| Int)) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (forall ((v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int)) (let ((.cse2 (select |c_#memory_int| |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse2 .cse3 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< v_ArrVal_834 (+ (select .cse2 .cse3) 1)) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|)))))))) is different from false [2022-10-04 02:38:16,969 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_reader_twoThread1of1ForFork1_write~int_old_#memory_int#1| |c_reader_twoThread1of1ForFork1_write~int_#ptr#1.base| v_ArrVal_832))) (let ((.cse0 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse2 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse0 .cse1 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< v_ArrVal_834 (+ (select .cse0 .cse1) 1)) (< 2 (select (store .cse2 .cse3 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< v_ArrVal_836 (+ (select .cse2 .cse3) 1)) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|))))))) is different from false [2022-10-04 02:38:17,090 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_reader_twoThread1of1ForFork1_write~int_old_#memory_int#1| |c_reader_twoThread1of1ForFork1_ring_dequeue_~r#1.base| v_ArrVal_832))) (let ((.cse0 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse2 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse0 .cse1 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (< v_ArrVal_834 (+ (select .cse0 .cse1) 1)) (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< v_ArrVal_836 (+ (select .cse2 .cse3) 1)) (< 2 (select (store .cse2 .cse3 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|))))))) is different from false [2022-10-04 02:38:17,154 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_ring_dequeue_~r#1.base| v_ArrVal_832))) (let ((.cse2 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse0 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse2 .cse3 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< v_ArrVal_834 (+ (select .cse2 .cse3) 1)) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|))))))) is different from false [2022-10-04 02:38:17,948 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_ring_dequeue_#in~r#1.base| v_ArrVal_832))) (let ((.cse2 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse0 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse2 .cse3 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< v_ArrVal_836 (+ (select .cse0 .cse1) 1)) (< v_ArrVal_834 (+ (select .cse2 .cse3) 1)) (< 2 (select (store .cse0 .cse1 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|))))))) is different from false [2022-10-04 02:38:18,043 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_832))) (let ((.cse0 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse2 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse0 .cse1 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< v_ArrVal_834 (+ (select .cse0 .cse1) 1)) (< v_ArrVal_836 (+ (select .cse2 .cse3) 1)) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|)) (< 2 (select (store .cse2 .cse3 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4))))))))) is different from false [2022-10-04 02:38:19,405 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 0 |c_reader_twoThread1of1ForFork1_#t~mem28#1|)) (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_835 (Array Int Int)) (|v_reader_twoThread1of1ForFork1_~val~1#1_32| Int) (|v_reader_twoThread1of1ForFork1_~i~3#1_33| Int) (v_ArrVal_836 Int) (v_ArrVal_834 Int) (|reader_twoThread1of1ForFork1_~val~1#1| Int)) (let ((.cse4 (store |c_#memory_int| |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_832))) (let ((.cse0 (select .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse1 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |reader_twoThread1of1ForFork1_~val~1#1| 4) (- 4)))) (let ((.cse2 (select (store (store .cse4 |c_reader_twoThread1of1ForFork1_~#read~0#1.base| (store .cse0 .cse1 v_ArrVal_834)) |c_reader_twoThread1of1ForFork1_~r~2#1.base| v_ArrVal_835) |c_reader_twoThread1of1ForFork1_~#read~0#1.base|)) (.cse3 (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (- 4) (* |v_reader_twoThread1of1ForFork1_~val~1#1_32| 4)))) (or (not (< 0 |reader_twoThread1of1ForFork1_~val~1#1|)) (not (<= |v_reader_twoThread1of1ForFork1_~i~3#1_33| 0)) (< (+ |v_reader_twoThread1of1ForFork1_~i~3#1_33| 1) |v_reader_twoThread1of1ForFork1_~val~1#1_32|) (< 1 |reader_twoThread1of1ForFork1_~val~1#1|) (< v_ArrVal_834 (+ (select .cse0 .cse1) 1)) (< v_ArrVal_836 (+ (select .cse2 .cse3) 1)) (not (< 0 |v_reader_twoThread1of1ForFork1_~val~1#1_32|)) (< 2 (select (store .cse2 .cse3 v_ArrVal_836) (+ |c_reader_twoThread1of1ForFork1_~#read~0#1.offset| (* |v_reader_twoThread1of1ForFork1_~i~3#1_33| 4)))))))))) is different from false [2022-10-04 02:38:19,581 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 02:38:19,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 253 treesize of output 253 [2022-10-04 02:38:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:38:19,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 165 [2022-10-04 02:38:19,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:38:19,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:38:19,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-04 02:38:19,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-10-04 02:38:19,677 INFO L356 Elim1Store]: treesize reduction 58, result has 28.4 percent of original size [2022-10-04 02:38:19,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 169 treesize of output 169 [2022-10-04 02:38:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6551 backedges. 192 proven. 1240 refuted. 0 times theorem prover too weak. 3747 trivial. 1372 not checked. [2022-10-04 02:38:22,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020420940] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:38:22,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:38:22,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 58, 48] total 115 [2022-10-04 02:38:22,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675479870] [2022-10-04 02:38:22,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:38:22,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2022-10-04 02:38:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:38:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2022-10-04 02:38:22,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=9969, Unknown=89, NotChecked=2556, Total=13110 [2022-10-04 02:38:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:22,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:38:22,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 28.321739130434782) internal successors, (3257), 115 states have internal predecessors, (3257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:38:22,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:38:22,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:38:22,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:38:22,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:46:53,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:46:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1392 states. [2022-10-04 02:46:53,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-04 02:46:53,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-04 02:46:53,676 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:46:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:46:53,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1594303127, now seen corresponding path program 1 times [2022-10-04 02:46:53,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:46:53,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84269557] [2022-10-04 02:46:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:46:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:46:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:46:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 15008 backedges. 378 proven. 13804 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-10-04 02:46:56,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:46:56,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84269557] [2022-10-04 02:46:56,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84269557] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:46:56,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094817906] [2022-10-04 02:46:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:46:56,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:46:56,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:46:56,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:46:56,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-04 02:46:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:46:57,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 4998 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-04 02:46:57,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:46:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 15008 backedges. 378 proven. 13804 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-10-04 02:46:59,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:47:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15008 backedges. 378 proven. 13804 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-10-04 02:47:01,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094817906] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:47:01,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:47:01,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2022-10-04 02:47:01,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081081077] [2022-10-04 02:47:01,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:47:01,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-04 02:47:01,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:47:01,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-04 02:47:01,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2022-10-04 02:47:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:01,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:47:01,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 141.73684210526315) internal successors, (2693), 19 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:47:01,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1392 states. [2022-10-04 02:47:01,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.