/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/queue_ok_longer.line384.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-30 06:18:18,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-30 06:18:18,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-30 06:18:18,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-30 06:18:18,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-30 06:18:18,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-30 06:18:18,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-30 06:18:18,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-30 06:18:18,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-30 06:18:18,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-30 06:18:18,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-30 06:18:18,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-30 06:18:18,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-30 06:18:18,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-30 06:18:18,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-30 06:18:18,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-30 06:18:18,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-30 06:18:18,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-30 06:18:18,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-30 06:18:18,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-30 06:18:18,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-30 06:18:18,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-30 06:18:18,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-30 06:18:18,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-30 06:18:18,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-30 06:18:18,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-30 06:18:18,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-30 06:18:18,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-30 06:18:18,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-30 06:18:18,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-30 06:18:18,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-30 06:18:18,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-30 06:18:18,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-30 06:18:18,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-30 06:18:18,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-30 06:18:18,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-30 06:18:18,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-30 06:18:18,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-30 06:18:18,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-30 06:18:18,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-30 06:18:18,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-30 06:18:18,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-30 06:18:18,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-30 06:18:18,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-30 06:18:18,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-30 06:18:18,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-30 06:18:18,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-30 06:18:18,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-30 06:18:18,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-30 06:18:18,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * Use SBE=true [2022-09-30 06:18:18,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-30 06:18:18,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-30 06:18:18,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-30 06:18:18,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-30 06:18:18,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-30 06:18:18,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-30 06:18:18,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-30 06:18:18,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 06:18:18,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-30 06:18:18,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-30 06:18:18,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-30 06:18:18,165 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-30 06:18:18,165 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-30 06:18:18,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-30 06:18:18,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-30 06:18:18,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-30 06:18:18,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-30 06:18:18,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-30 06:18:18,410 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-30 06:18:18,415 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-30 06:18:18,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/queue_ok_longer.line384.bpl [2022-09-30 06:18:18,417 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/queue_ok_longer.line384.bpl' [2022-09-30 06:18:18,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-30 06:18:18,484 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-30 06:18:18,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-30 06:18:18,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-30 06:18:18,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-30 06:18:18,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-30 06:18:18,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-30 06:18:18,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-30 06:18:18,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-30 06:18:18,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/1) ... [2022-09-30 06:18:18,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 06:18:18,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:18,641 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) [2022-09-30 06:18:18,662 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 [2022-09-30 06:18:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-30 06:18:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-30 06:18:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-30 06:18:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-30 06:18:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-30 06:18:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-30 06:18:18,686 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-30 06:18:18,860 INFO L234 CfgBuilder]: Building ICFG [2022-09-30 06:18:18,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-30 06:18:19,493 INFO L275 CfgBuilder]: Performing block encoding [2022-09-30 06:18:19,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-30 06:18:19,515 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-30 06:18:19,518 INFO L202 PluginConnector]: Adding new model queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 06:18:19 BoogieIcfgContainer [2022-09-30 06:18:19,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-30 06:18:19,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-30 06:18:19,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-30 06:18:19,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-30 06:18:19,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 06:18:18" (1/2) ... [2022-09-30 06:18:19,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27150e79 and model type queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 06:18:19, skipping insertion in model container [2022-09-30 06:18:19,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue_ok_longer.line384.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 06:18:19" (2/2) ... [2022-09-30 06:18:19,533 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.line384.bpl [2022-09-30 06:18:19,541 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-30 06:18:19,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-30 06:18:19,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-30 06:18:19,551 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-30 06:18:19,707 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-30 06:18:19,764 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 06:18:19,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 06:18:19,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:19,766 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) [2022-09-30 06:18:19,789 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 [2022-09-30 06:18:19,807 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 06:18:19,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 06:18:19,820 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;@23cc0e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 06:18:19,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 06:18:20,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 06:18:20,223 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 06:18:20,226 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-09-30 06:18:20,235 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 06:18:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 06:18:20,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:20,239 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) [2022-09-30 06:18:20,247 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 06:18:20,248 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 [2022-09-30 06:18:20,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 06:18:20,249 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;@23cc0e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 06:18:20,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 06:18:20,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 06:18:20,275 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 06:18:20,279 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-30 06:18:20,293 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 06:18:20,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 06:18:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:20,324 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) [2022-09-30 06:18:20,326 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 [2022-09-30 06:18:20,329 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 06:18:20,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-30 06:18:20,331 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;@23cc0e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 06:18:20,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 06:18:20,332 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-30 06:18:20,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 06:18:20,333 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 06:18:20,333 INFO L307 ceAbstractionStarter]: Result for error location t1Err0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-09-30 06:18:20,338 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 06:18:20,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 06:18:20,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:20,341 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) [2022-09-30 06:18:20,345 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 [2022-09-30 06:18:20,349 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 06:18:20,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-30 06:18:20,350 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;@23cc0e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 06:18:20,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 06:18:20,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:18:20,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:18:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 812657596, now seen corresponding path program 1 times [2022-09-30 06:18:20,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:18:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024744261] [2022-09-30 06:18:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:18:20,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:18:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:18:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:18:20,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:18:20,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024744261] [2022-09-30 06:18:20,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024744261] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 06:18:20,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 06:18:20,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-30 06:18:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214428553] [2022-09-30 06:18:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 06:18:20,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-30 06:18:20,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:18:20,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-30 06:18:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-30 06:18:20,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:20,943 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:18:20,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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) [2022-09-30 06:18:20,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:20,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-30 06:18:20,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:18:20,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:18:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1025703088, now seen corresponding path program 1 times [2022-09-30 06:18:20,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:18:20,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766666524] [2022-09-30 06:18:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:18:20,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:18:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:18:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:18:22,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:18:22,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766666524] [2022-09-30 06:18:22,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766666524] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 06:18:22,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 06:18:22,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-09-30 06:18:22,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373640060] [2022-09-30 06:18:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 06:18:22,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-09-30 06:18:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:18:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-09-30 06:18:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2022-09-30 06:18:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:22,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:18:22,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.612903225806452) internal successors, (267), 31 states have internal predecessors, (267), 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) [2022-09-30 06:18:22,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:22,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:18:25,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-30 06:18:25,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:18:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:18:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2105235900, now seen corresponding path program 1 times [2022-09-30 06:18:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:18:25,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22381378] [2022-09-30 06:18:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:18:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:18:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:18:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:18:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:18:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22381378] [2022-09-30 06:18:26,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22381378] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 06:18:26,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 06:18:26,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-30 06:18:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33533198] [2022-09-30 06:18:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 06:18:26,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-30 06:18:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:18:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-30 06:18:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-09-30 06:18:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:26,009 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:18:26,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.533333333333335) internal successors, (278), 16 states have internal predecessors, (278), 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) [2022-09-30 06:18:26,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:26,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:18:26,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:18:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:18:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:18:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-30 06:18:26,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:18:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:18:26,710 INFO L85 PathProgramCache]: Analyzing trace with hash -427880057, now seen corresponding path program 1 times [2022-09-30 06:18:26,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:18:26,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744613322] [2022-09-30 06:18:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:18:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:18:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:18:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:18:45,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:18:45,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744613322] [2022-09-30 06:18:45,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744613322] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 06:18:45,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260743464] [2022-09-30 06:18:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:18:45,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 06:18:45,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:18:45,163 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) [2022-09-30 06:18:45,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-30 06:18:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:18:45,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 158 conjunts are in the unsatisfiable core [2022-09-30 06:18:45,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 06:18:45,647 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 [2022-09-30 06:18:45,791 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 [2022-09-30 06:18:46,217 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-30 06:18:46,218 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 [2022-09-30 06:18:46,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-30 06:18:46,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-09-30 06:18:47,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 06:18:47,385 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 21 treesize of output 20 [2022-09-30 06:18:48,396 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-09-30 06:18:48,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-09-30 06:18:48,419 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 7 treesize of output 3 [2022-09-30 06:18:50,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-30 06:18:50,333 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-30 06:18:50,334 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 45 [2022-09-30 06:18:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 06:18:51,045 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 33 treesize of output 32 [2022-09-30 06:18:52,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 53 treesize of output 31 [2022-09-30 06:18:53,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 06:18:53,591 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 38 treesize of output 38 [2022-09-30 06:18:54,820 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-30 06:18:54,820 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 53 treesize of output 43 [2022-09-30 06:18:55,133 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-30 06:18:55,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 27 [2022-09-30 06:18:55,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 06:18:55,453 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 21 treesize of output 20 [2022-09-30 06:18:55,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-09-30 06:18:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:18:55,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 06:19:27,045 INFO L356 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2022-09-30 06:19:27,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 206 treesize of output 112 [2022-09-30 06:19:27,061 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:19:27,062 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 160 treesize of output 160 [2022-09-30 06:19:27,076 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 70 treesize of output 62 [2022-09-30 06:19:27,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-30 06:19:27,088 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 85 treesize of output 73 [2022-09-30 06:19:27,148 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 [2022-09-30 06:19:27,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-30 06:19:27,261 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:19:27,261 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 141 treesize of output 133 [2022-09-30 06:19:29,510 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 52 treesize of output 50 [2022-09-30 06:19:29,787 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:19:29,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 58 [2022-09-30 06:19:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:19:30,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260743464] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 06:19:30,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 06:19:30,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 59, 60] total 178 [2022-09-30 06:19:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578916769] [2022-09-30 06:19:30,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 06:19:30,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 178 states [2022-09-30 06:19:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:19:30,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2022-09-30 06:19:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=29857, Unknown=460, NotChecked=0, Total=31506 [2022-09-30 06:19:30,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:19:30,157 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:19:30,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 178 states, 178 states have (on average 5.095505617977528) internal successors, (907), 178 states have internal predecessors, (907), 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) [2022-09-30 06:19:30,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:19:30,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:19:30,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:19:30,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:04,079 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse24 (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse58 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|)) (.cse38 (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_~#queue~0.base|)) (.cse34 (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_t1Thread1of1ForFork1_write~int_#ptr#1.base|)) (.cse48 (select |c_#memory_int| |c_~#queue~0.base|)) (.cse18 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse11 ((as const (Array Int Int)) 0))) (let ((.cse17 (@diff .cse18 .cse11)) (.cse47 (@diff .cse48 .cse11)) (.cse46 (@diff .cse34 .cse11)) (.cse45 (@diff .cse38 .cse11)) (.cse59 (@diff .cse58 .cse11)) (.cse23 (@diff .cse24 .cse11))) (let ((.cse43 (store .cse24 .cse23 0)) (.cse50 (store .cse58 .cse59 0)) (.cse29 (store .cse38 .cse45 0)) (.cse37 (store .cse34 .cse46 0)) (.cse54 (store .cse48 .cse47 0)) (.cse56 (store .cse18 .cse17 0))) (let ((.cse33 (select |c_#memory_int| 7)) (.cse55 (@diff .cse56 .cse11)) (.cse36 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604)) (.cse53 (@diff .cse54 .cse11)) (.cse35 (@diff .cse37 .cse11)) (.cse30 (@diff .cse29 .cse11)) (.cse49 (@diff .cse50 .cse11)) (.cse44 (@diff .cse43 .cse11))) (let ((.cse39 (+ |c_~#queue~0.offset| 1604)) (.cse5 (select |c_#length| |c_~#queue~0.base|)) (.cse32 (store .cse43 .cse44 0)) (.cse41 (store .cse50 .cse49 0)) (.cse12 (store .cse29 .cse30 0)) (.cse26 (store .cse37 .cse35 0)) (.cse21 (store .cse54 .cse53 0)) (.cse57 (select (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| 7) .cse36)) (.cse15 (store .cse56 .cse55 0)) (.cse25 (select .cse24 .cse36)) (.cse7 (select .cse33 .cse36))) (let ((.cse20 (<= .cse7 1)) (.cse10 (<= (select |c_#length| 7) 4)) (.cse9 (select .cse33 (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 1604))) (.cse6 (+ (* .cse25 4) |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse14 (@diff .cse15 .cse11)) (.cse19 (<= .cse57 1)) (.cse22 (@diff .cse21 .cse11)) (.cse27 (@diff .cse26 .cse11)) (.cse13 (@diff .cse12 .cse11)) (.cse42 (@diff .cse41 .cse11)) (.cse40 (+ |c_ULTIMATE.start_init_~q#1.offset| 1604)) (.cse16 (select |c_#length| |c_ULTIMATE.start_main_~#id1~0#1.base|)) (.cse31 (@diff .cse32 .cse11)) (.cse28 (select .cse18 .cse36)) (.cse51 (<= .cse5 4)) (.cse52 (select (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_~#queue~0.base|) .cse39)) (.cse8 (exists ((|ULTIMATE.start_write~int_#ptr#1.base| Int)) (<= (select |c_#length| |ULTIMATE.start_write~int_#ptr#1.base|) 4)))) (and (or (forall ((v_ArrVal_147 Int) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_51| Int) (v_ArrVal_145 Int) (v_ArrVal_142 Int) (v_ArrVal_151 (Array Int Int)) (v_ArrVal_144 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_43| Int) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_44| Int)) (let ((.cse3 (store (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base|) |c_ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_142)) |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_144))) (let ((.cse1 (select .cse3 |c_~#queue~0.base|))) (let ((.cse4 (store (store .cse1 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_44| v_ArrVal_145) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_43| v_ArrVal_147)) (.cse2 (+ |c_~#queue~0.offset| 1604))) (let ((.cse0 (select .cse4 .cse2))) (or (= 400 .cse0) (< (+ (* (select .cse1 .cse2) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_44|) (not (<= (+ 1608 |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_43|)) (< (select (select (store (store .cse3 |c_~#queue~0.base| (store .cse4 .cse2 (+ .cse0 1))) |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_51| v_ArrVal_151) |c_~#queue~0.base|) .cse2) 400) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_51| |c_~#stored_elements~0.base|)))))))) (< .cse5 (+ |c_~#queue~0.offset| 1612))) (= .cse6 |c_t1Thread1of1ForFork1_write~int_#ptr#1.offset|) (not (= |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| |c_ULTIMATE.start_main_~#id1~0#1.base|)) (not (= .cse7 401)) (or (and .cse8 (<= .cse9 1)) .cse10) (= .cse11 (store .cse12 .cse13 0)) (or (<= 1608 .cse14) (= .cse11 .cse15) (<= .cse14 1600)) (<= .cse16 4) (or (<= 1608 .cse17) (<= .cse17 1600) (= .cse11 .cse18)) (or .cse10 (and .cse19 .cse8)) (= |c_t1Thread1of1ForFork1_read~int_#value#1| 0) (= |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 0) .cse20 (= (select |c_ULTIMATE.start_#Ultimate.allocOnStack_old_#valid#1| |c_ULTIMATE.start_main_~#id1~0#1.base|) 1) (or (and .cse20 .cse8) .cse10) (= .cse11 (store .cse21 .cse22 0)) (= |c_~#queue~0.offset| |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) (not (= |c_~#queue~0.base| |c_~#stored_elements~0.base|)) (not (= .cse9 401)) (<= (select |c_#length| |c_ULTIMATE.start_write~int_#ptr#1.base|) 4) (or (<= 1608 .cse23) (= .cse11 .cse24) (<= .cse23 1600)) (<= |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1| .cse25) (= .cse11 (store .cse26 .cse27 0)) (= |c_t1Thread1of1ForFork1_read~int_#value#1| .cse28) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (not (= 400 .cse28)) (or (= .cse11 .cse29) (<= .cse30 1600) (<= 1608 .cse30)) (or (<= .cse31 1600) (= .cse11 .cse32) (<= 1608 .cse31)) (<= |c_t1Thread1of1ForFork1_write~int_#ptr#1.offset| .cse6) (<= (select .cse33 |c_t1Thread1of1ForFork1_read~int_#ptr#1.offset|) 1) (= |c_t1Thread1of1ForFork1_read~int_#ptr#1.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (= |c_~#queue~0.offset| 0) (= (select (select |c_#memory_int| |c_t1Thread1of1ForFork1_read~int_#ptr#1.base|) |c_t1Thread1of1ForFork1_read~int_#ptr#1.offset|) 0) (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| |c_~#queue~0.offset|) (= |c_~#queue~0.offset| |c_ULTIMATE.start_init_#in~q#1.offset|) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) (= |c_t1Thread1of1ForFork1_read~int_#ptr#1.offset| 1604) (= .cse28 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|) (= |c_ULTIMATE.start_init_~q#1.offset| |c_~#queue~0.offset|) (= 7 |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (= |c_t1Thread1of1ForFork1_write~int_#ptr#1.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (or (and (<= (select .cse34 .cse35) 0) (<= .cse35 .cse36)) (<= 1608 .cse35) (<= .cse35 1600) (= .cse11 .cse37)) (= .cse11 (store .cse15 .cse14 0)) (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 0) (<= (select .cse38 .cse39) 0) (= 7 |c_t1Thread1of1ForFork1_read~int_#ptr#1.base|) (<= (select (select |c_#memory_int| |c_ULTIMATE.start_init_~q#1.base|) .cse40) 0) (or (= .cse11 .cse41) (<= 1608 .cse42) (<= .cse42 1600)) (or (= .cse11 .cse43) (<= .cse44 1600) (<= 1608 .cse44)) .cse19 (= (select |c_#valid| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base|) 1) (= .cse36 |c_t1Thread1of1ForFork1_read~int_#ptr#1.offset|) (not (= |c_~#queue~0.base| |c_ULTIMATE.start_write~int_#ptr#1.base|)) (or (= .cse11 .cse21) (<= .cse22 1600) (<= 1608 .cse22)) (or (<= 1608 .cse45) (<= .cse45 1600) (= .cse11 .cse38)) (or (and (<= .cse27 .cse36) (<= (select .cse34 .cse27) 0)) (<= 1608 .cse27) (= .cse11 .cse26) (<= .cse27 1600)) (= 7 |c_~#queue~0.base|) (or (<= .cse46 1600) (<= 1608 .cse46) (= .cse11 .cse34) (and (<= (select .cse34 .cse46) 0) (<= .cse46 .cse36))) (<= (select |c_#length| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base|) 4) (= |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1| 0) (= 7 |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) (<= |c_t1Thread1of1ForFork1_write~int_#ptr#1.offset| |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) (or (<= 1608 .cse47) (= .cse11 .cse48) (<= .cse47 1600)) (or (<= .cse13 1600) (= .cse11 .cse12) (<= 1608 .cse13)) (= .cse11 (store .cse41 .cse42 0)) (or (and (not (= |c_~#queue~0.base| |c_ULTIMATE.start_main_~#id1~0#1.base|)) (< |c_~#stored_elements~0.base| |c_~#queue~0.base|)) (forall ((|ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| Int) (v_ArrVal_139 Int)) (or (< (select (store |c_#length| |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_139) |c_~#queue~0.base|) (+ |c_~#queue~0.offset| 1612)) (not (= 0 (select |c_#valid| |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base|)))))) (<= (select (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_init_~q#1.base|) .cse40) 0) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_~q#1.base|) (or (<= .cse49 1600) (= .cse11 .cse50) (<= 1608 .cse49)) (or .cse51 (and (<= .cse52 0) .cse8)) (= .cse25 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|) (not (= .cse5 .cse16)) (= .cse11 (store .cse32 .cse31 0)) (<= (select |c_ULTIMATE.start_#Ultimate.allocOnStack_old_#length#1| |c_ULTIMATE.start_main_~#id1~0#1.base|) 4) (or (<= 1608 .cse53) (<= .cse53 1600) (= .cse11 .cse54)) (<= |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1| .cse28) (or .cse51 (and (<= (select .cse48 .cse39) 0) .cse8)) (not (= .cse52 401)) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_#in~q#1.base|) (or (<= .cse55 1600) (= .cse11 .cse56) (<= 1608 .cse55)) (<= |c_~#stored_elements~0.base| 6) (not (= .cse57 401)) (or .cse51 (and (<= .cse52 1) .cse8)) (<= |c_ULTIMATE.start_#Ultimate.allocOnStack_~size#1| 4) (or (= .cse11 .cse58) (<= .cse59 1600) (<= 1608 .cse59))))))))) is different from true [2022-09-30 06:21:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:21:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:21:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-09-30 06:21:32,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-30 06:21:32,740 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 [2022-09-30 06:21:32,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:21:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:21:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash -105076603, now seen corresponding path program 1 times [2022-09-30 06:21:32,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:21:32,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369437151] [2022-09-30 06:21:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:21:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:21:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:21:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:21:33,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:21:33,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369437151] [2022-09-30 06:21:33,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369437151] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 06:21:33,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983857398] [2022-09-30 06:21:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:21:33,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 06:21:33,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:21:33,241 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) [2022-09-30 06:21:33,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-30 06:21:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:21:33,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 79 conjunts are in the unsatisfiable core [2022-09-30 06:21:33,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 06:21:34,816 INFO L356 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-09-30 06:21:34,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2022-09-30 06:21:35,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 06:21:35,384 INFO L356 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2022-09-30 06:21:35,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 39 [2022-09-30 06:21:35,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 06:21:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:21:38,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 06:21:46,449 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:21:46,449 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 157 treesize of output 159 [2022-09-30 06:21:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:21:46,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983857398] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 06:21:46,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 06:21:46,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 36, 17] total 66 [2022-09-30 06:21:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872777217] [2022-09-30 06:21:46,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 06:21:46,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-30 06:21:46,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:21:46,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-30 06:21:46,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=4018, Unknown=0, NotChecked=0, Total=4422 [2022-09-30 06:21:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:46,858 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:21:46,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 15.893939393939394) internal successors, (1049), 67 states have internal predecessors, (1049), 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) [2022-09-30 06:21:46,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:46,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:21:46,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:21:46,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-09-30 06:21:46,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:21:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:21:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:21:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-09-30 06:21:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-30 06:21:51,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-30 06:21:52,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 06:21:52,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 06:21:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 06:21:52,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1802644901, now seen corresponding path program 2 times [2022-09-30 06:21:52,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 06:21:52,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86647967] [2022-09-30 06:21:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 06:21:52,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 06:21:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 06:21:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 216 proven. 183 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-09-30 06:21:52,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 06:21:52,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86647967] [2022-09-30 06:21:52,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86647967] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 06:21:52,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454291860] [2022-09-30 06:21:52,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-30 06:21:52,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 06:21:52,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 06:21:52,880 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) [2022-09-30 06:21:52,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-30 06:21:53,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-30 06:21:53,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 06:21:53,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 49 conjunts are in the unsatisfiable core [2022-09-30 06:21:53,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 06:21:53,575 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-09-30 06:21:53,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-09-30 06:21:53,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-30 06:21:53,819 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-09-30 06:21:53,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-09-30 06:21:53,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 06:21:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 434 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:21:56,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 06:22:06,450 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:22:06,451 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 158 treesize of output 160 [2022-09-30 06:22:06,819 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 06:22:06,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 85 treesize of output 355 [2022-09-30 06:22:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 234 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 06:22:08,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454291860] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 06:22:08,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 06:22:08,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 27, 21] total 71 [2022-09-30 06:22:08,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140796794] [2022-09-30 06:22:08,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 06:22:08,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-09-30 06:22:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 06:22:08,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-09-30 06:22:08,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=4615, Unknown=0, NotChecked=0, Total=4970 [2022-09-30 06:22:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:22:08,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 06:22:08,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 20.422535211267604) internal successors, (1450), 71 states have internal predecessors, (1450), 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) [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-09-30 06:22:08,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.