/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk24/elimination_backoff_stack.line10529.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 04:58:07,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 04:58:07,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 04:58:07,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 04:58:07,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 04:58:07,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 04:58:07,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 04:58:07,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 04:58:07,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 04:58:07,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 04:58:07,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 04:58:07,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 04:58:07,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 04:58:07,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 04:58:07,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 04:58:07,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 04:58:07,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 04:58:07,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 04:58:07,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 04:58:07,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 04:58:07,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 04:58:07,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 04:58:07,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 04:58:07,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 04:58:07,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 04:58:07,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 04:58:07,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 04:58:07,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 04:58:07,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 04:58:07,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 04:58:07,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 04:58:07,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 04:58:07,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 04:58:07,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 04:58:07,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 04:58:07,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 04:58:07,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 04:58:07,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 04:58:07,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 04:58:07,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 04:58:07,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 04:58:07,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-24 04:58:07,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 04:58:07,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 04:58:07,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 04:58:07,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 04:58:07,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 04:58:07,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 04:58:07,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 04:58:07,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 04:58:07,353 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 04:58:07,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 04:58:07,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 04:58:07,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 04:58:07,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 04:58:07,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 04:58:07,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 04:58:07,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 04:58:07,357 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 04:58:07,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 04:58:07,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 04:58:07,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 04:58:07,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 04:58:07,633 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 04:58:07,635 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 04:58:07,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk24/elimination_backoff_stack.line10529.bpl [2022-10-24 04:58:07,636 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk24/elimination_backoff_stack.line10529.bpl' [2022-10-24 04:58:07,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 04:58:07,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 04:58:07,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 04:58:07,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 04:58:07,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 04:58:07,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,064 INFO L138 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 04:58:08,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 04:58:08,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 04:58:08,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 04:58:08,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 04:58:08,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 04:58:08,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 04:58:08,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 04:58:08,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 04:58:08,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/1) ... [2022-10-24 04:58:08,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 04:58:08,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 04:58:08,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-24 04:58:08,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-24 04:58:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-10-24 04:58:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-10-24 04:58:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-10-24 04:58:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-10-24 04:58:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 04:58:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 04:58:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-10-24 04:58:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-10-24 04:58:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-10-24 04:58:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-10-24 04:58:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-10-24 04:58:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-10-24 04:58:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-10-24 04:58:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-10-24 04:58:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-10-24 04:58:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-10-24 04:58:08,527 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 04:58:09,107 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 04:58:09,108 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 04:58:13,578 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 04:58:13,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 04:58:13,629 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-24 04:58:13,636 INFO L202 PluginConnector]: Adding new model elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:13 BoogieIcfgContainer [2022-10-24 04:58:13,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 04:58:13,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 04:58:13,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 04:58:13,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 04:58:13,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:58:07" (1/2) ... [2022-10-24 04:58:13,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cce8910 and model type elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:58:13, skipping insertion in model container [2022-10-24 04:58:13,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line10529.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:58:13" (2/2) ... [2022-10-24 04:58:13,644 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.line10529.bpl [2022-10-24 04:58:13,649 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 04:58:13,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 04:58:13,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 04:58:13,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 04:58:14,612 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-24 04:58:14,717 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 04:58:14,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 04:58:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 04:58:14,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 04:58:14,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-24 04:58:14,782 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 04:58:14,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == instrPop3Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 04:58:14,792 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;@4bac736e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 04:58:14,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 04:58:14,794 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-24 04:58:14,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location instrPop3Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-24 04:58:14,799 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 04:58:14,800 INFO L307 ceAbstractionStarter]: Result for error location instrPop3Err0ASSERT_VIOLATIONASSERT was SAFE (1/9) [2022-10-24 04:58:15,025 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 04:58:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 04:58:15,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 04:58:15,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 04:58:15,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-24 04:58:15,039 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 04:58:15,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 04:58:15,043 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;@4bac736e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 04:58:15,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.