/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/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 18:41:10,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-19 18:41:10,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-19 18:41:10,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-19 18:41:10,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-19 18:41:10,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-19 18:41:10,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-19 18:41:10,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-19 18:41:10,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-19 18:41:10,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-19 18:41:10,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-19 18:41:10,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-19 18:41:10,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-19 18:41:10,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-19 18:41:10,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-19 18:41:10,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-19 18:41:10,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-19 18:41:10,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-19 18:41:10,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-19 18:41:10,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-19 18:41:10,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-19 18:41:10,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-19 18:41:10,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-19 18:41:10,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-19 18:41:10,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-19 18:41:10,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-19 18:41:10,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-19 18:41:10,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-19 18:41:10,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-19 18:41:10,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-19 18:41:10,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-19 18:41:10,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-19 18:41:10,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-19 18:41:10,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-19 18:41:10,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-19 18:41:10,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-19 18:41:10,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-19 18:41:10,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-19 18:41:10,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-19 18:41:10,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-19 18:41:10,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-19 18:41:10,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 18:41:10,899 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 18:41:10,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 18:41:10,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 18:41:10,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 18:41:10,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 18:41:10,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 18:41:10,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 18:41:10,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 18:41:10,901 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 18:41:10,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 18:41:10,901 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 18:41:10,902 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 18:41:10,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 18:41:10,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 18:41:10,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 18:41:10,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 18:41:10,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 18:41:10,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 18:41:10,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 18:41:10,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 18:41:10,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 18:41:10,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 18:41:10,905 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 18:41:10,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-19 18:41:11,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 18:41:11,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 18:41:11,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 18:41:11,175 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 18:41:11,179 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 18:41:11,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2023-05-19 18:41:11,180 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2023-05-19 18:41:11,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 18:41:11,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 18:41:11,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 18:41:11,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 18:41:11,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 18:41:11,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,233 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 18:41:11,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 18:41:11,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 18:41:11,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 18:41:11,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 18:41:11,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 18:41:11,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 18:41:11,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 18:41:11,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 18:41:11,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/1) ... [2023-05-19 18:41:11,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 18:41:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:11,296 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) [2023-05-19 18:41:11,308 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 [2023-05-19 18:41:11,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 18:41:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 18:41:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 18:41:11,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 18:41:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 18:41:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 18:41:11,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 18:41:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 18:41:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 18:41:11,350 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-19 18:41:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-19 18:41:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-19 18:41:11,352 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 18:41:11,401 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 18:41:11,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 18:41:11,525 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 18:41:11,556 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 18:41:11,556 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 18:41:11,558 INFO L202 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 06:41:11 BoogieIcfgContainer [2023-05-19 18:41:11,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 18:41:11,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 18:41:11,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 18:41:11,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 18:41:11,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 06:41:11" (1/2) ... [2023-05-19 18:41:11,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0a05ab and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 06:41:11, skipping insertion in model container [2023-05-19 18:41:11,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 06:41:11" (2/2) ... [2023-05-19 18:41:11,574 INFO L112 eAbstractionObserver]: Analyzing ICFG misc-5.wvr.bpl [2023-05-19 18:41:11,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 18:41:11,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 18:41:11,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 18:41:11,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 18:41:11,650 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-19 18:41:11,737 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 18:41:11,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 18:41:11,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:11,739 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) [2023-05-19 18:41:11,755 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 [2023-05-19 18:41:11,790 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 18:41:11,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 18:41:11,815 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;@4e53fc7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 18:41:11,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-19 18:41:12,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 18:41:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 18:41:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1077872202, now seen corresponding path program 1 times [2023-05-19 18:41:12,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 18:41:12,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876641139] [2023-05-19 18:41:12,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:12,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 18:41:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 18:41:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 18:41:12,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 18:41:12,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876641139] [2023-05-19 18:41:12,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876641139] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 18:41:12,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361291204] [2023-05-19 18:41:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:12,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:12,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:12,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 18:41:12,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 18:41:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 18:41:12,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-19 18:41:12,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 18:41:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 18:41:12,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-19 18:41:12,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361291204] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 18:41:12,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-19 18:41:12,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-05-19 18:41:12,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146824644] [2023-05-19 18:41:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 18:41:12,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 18:41:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 18:41:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 18:41:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-19 18:41:12,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:12,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 18:41:12,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-05-19 18:41:12,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:12,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-19 18:41:12,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-19 18:41:12,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 18:41:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 18:41:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash -910222344, now seen corresponding path program 2 times [2023-05-19 18:41:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 18:41:12,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778387770] [2023-05-19 18:41:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 18:41:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 18:41:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:12,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 18:41:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778387770] [2023-05-19 18:41:12,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778387770] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 18:41:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815464470] [2023-05-19 18:41:12,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 18:41:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:12,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 18:41:12,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 18:41:12,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 18:41:12,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 18:41:12,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-19 18:41:12,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 18:41:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:12,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 18:41:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:12,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815464470] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 18:41:12,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 18:41:12,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-05-19 18:41:12,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724219558] [2023-05-19 18:41:12,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 18:41:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-19 18:41:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 18:41:12,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-19 18:41:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-19 18:41:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:12,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 18:41:12,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-05-19 18:41:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:12,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 18:41:12,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-19 18:41:13,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:13,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 18:41:13,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 18:41:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1464528520, now seen corresponding path program 3 times [2023-05-19 18:41:13,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 18:41:13,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883663952] [2023-05-19 18:41:13,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:13,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 18:41:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 18:41:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:13,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 18:41:13,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883663952] [2023-05-19 18:41:13,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883663952] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 18:41:13,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616803613] [2023-05-19 18:41:13,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 18:41:13,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:13,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:13,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 18:41:13,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-19 18:41:13,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-05-19 18:41:13,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 18:41:13,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-19 18:41:13,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 18:41:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:13,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 18:41:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:13,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616803613] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 18:41:13,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 18:41:13,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-19 18:41:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668833943] [2023-05-19 18:41:13,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 18:41:13,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-19 18:41:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 18:41:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-19 18:41:13,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-05-19 18:41:13,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:13,697 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 18:41:13,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 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) [2023-05-19 18:41:13,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:13,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 18:41:13,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 18:41:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 18:41:13,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-19 18:41:14,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:14,110 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 18:41:14,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 18:41:14,111 INFO L85 PathProgramCache]: Analyzing trace with hash 477614088, now seen corresponding path program 4 times [2023-05-19 18:41:14,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 18:41:14,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949174927] [2023-05-19 18:41:14,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:14,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 18:41:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 18:41:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:14,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 18:41:14,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949174927] [2023-05-19 18:41:14,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949174927] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 18:41:14,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836809324] [2023-05-19 18:41:14,541 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 18:41:14,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 18:41:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 18:41:14,542 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) [2023-05-19 18:41:14,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-19 18:41:14,579 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 18:41:14,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 18:41:14,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2023-05-19 18:41:14,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 18:41:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:15,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 18:41:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 18:41:16,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836809324] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 18:41:16,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 18:41:16,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2023-05-19 18:41:16,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490800592] [2023-05-19 18:41:16,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 18:41:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-05-19 18:41:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 18:41:16,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-05-19 18:41:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-05-19 18:41:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:16,386 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 18:41:16,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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) [2023-05-19 18:41:16,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:16,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 18:41:16,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 18:41:16,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 18:41:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 18:41:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 18:41:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 18:41:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-19 18:41:18,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-19 18:41:18,193 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 [2023-05-19 18:41:18,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 18:41:18,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 18:41:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash 19832104, now seen corresponding path program 5 times [2023-05-19 18:41:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 18:41:18,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276749133] [2023-05-19 18:41:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 18:41:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 18:41:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-05-19 18:53:48,510 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-19 18:53:48,510 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-19 18:53:49,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-19 18:53:49,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown