/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/divinefifo-bug_1w1r.line460.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 22:15:50,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 22:15:50,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 22:15:50,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 22:15:50,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 22:15:50,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 22:15:50,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 22:15:50,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 22:15:50,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 22:15:50,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 22:15:50,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 22:15:50,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 22:15:50,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 22:15:50,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 22:15:50,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 22:15:50,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 22:15:50,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 22:15:50,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 22:15:50,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 22:15:50,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 22:15:50,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 22:15:50,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 22:15:50,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 22:15:50,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 22:15:50,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 22:15:50,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 22:15:50,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 22:15:50,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 22:15:50,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 22:15:50,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-29 22:15:50,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 22:15:50,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 22:15:50,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 22:15:50,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 22:15:50,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 22:15:50,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 22:15:50,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 22:15:50,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 22:15:50,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 22:15:50,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 22:15:50,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 22:15:50,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 22:15:50,394 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 22:15:50,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 22:15:50,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 22:15:50,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 22:15:50,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:15:50,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 22:15:50,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 22:15:50,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 22:15:50,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 22:15:50,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 22:15:50,397 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 22:15:50,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 22:15:50,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 22:15:50,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 22:15:50,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 22:15:50,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 22:15:50,650 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 22:15:50,651 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 22:15:50,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line460.bpl [2022-09-29 22:15:50,652 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line460.bpl' [2022-09-29 22:15:50,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 22:15:50,741 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 22:15:50,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 22:15:50,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 22:15:50,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 22:15:50,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 22:15:50,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 22:15:50,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 22:15:50,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 22:15:50,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/1) ... [2022-09-29 22:15:50,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:15:50,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:15:50,937 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) [2022-09-29 22:15:50,947 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 [2022-09-29 22:15:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 22:15:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 22:15:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 22:15:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 22:15:50,983 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 22:15:51,131 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 22:15:51,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 22:15:52,211 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 22:15:52,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 22:15:52,231 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 22:15:52,234 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:15:52 BoogieIcfgContainer [2022-09-29 22:15:52,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 22:15:52,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 22:15:52,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 22:15:52,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 22:15:52,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:15:50" (1/2) ... [2022-09-29 22:15:52,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f799d7 and model type divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:15:52, skipping insertion in model container [2022-09-29 22:15:52,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line460.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:15:52" (2/2) ... [2022-09-29 22:15:52,245 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line460.bpl [2022-09-29 22:15:52,252 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 22:15:52,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 22:15:52,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 22:15:52,260 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 22:15:52,382 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 22:15:52,440 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:15:52,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:15:52,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:15:52,443 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) [2022-09-29 22:15:52,475 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 [2022-09-29 22:15:52,512 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:15:52,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:15:52,531 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;@6d000726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:15:52,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:15:52,534 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 22:15:52,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 22:15:52,541 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 22:15:52,543 INFO L307 ceAbstractionStarter]: Result for error location pusherErr0ASSERT_VIOLATIONASSERT was SAFE (1/3) [2022-09-29 22:15:52,563 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:15:52,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:15:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:15:52,568 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) [2022-09-29 22:15:52,571 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 [2022-09-29 22:15:52,575 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:15:52,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 22:15:52,577 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;@6d000726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:15:52,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:15:52,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 22:15:52,651 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 22:15:52,651 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/3) [2022-09-29 22:15:52,661 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:15:52,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:15:52,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:15:52,704 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) [2022-09-29 22:15:52,705 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 [2022-09-29 22:15:52,709 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:15:52,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:15:52,710 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;@6d000726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:15:52,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:15:52,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:15:52,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:15:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1267158626, now seen corresponding path program 1 times [2022-09-29 22:15:53,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:15:53,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839131842] [2022-09-29 22:15:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:15:53,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:15:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:15:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:15:53,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:15:53,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839131842] [2022-09-29 22:15:53,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839131842] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:15:53,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:15:53,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 22:15:53,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482885365] [2022-09-29 22:15:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:15:53,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 22:15:53,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:15:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 22:15:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 22:15:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:15:53,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:15:53,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 188.0) internal successors, (376), 2 states have internal predecessors, (376), 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) [2022-09-29 22:15:53,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:15:53,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:15:53,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 22:15:53,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:15:53,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:15:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash -64737798, now seen corresponding path program 1 times [2022-09-29 22:15:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:15:53,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562335228] [2022-09-29 22:15:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:15:53,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:15:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:15:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:15:56,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:15:56,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562335228] [2022-09-29 22:15:56,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562335228] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:15:56,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:15:56,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-09-29 22:15:56,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473650071] [2022-09-29 22:15:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:15:56,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-09-29 22:15:56,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:15:56,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-09-29 22:15:56,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2394, Unknown=0, NotChecked=0, Total=2550 [2022-09-29 22:15:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:15:56,531 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:15:56,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 7.5) internal successors, (375), 51 states have internal predecessors, (375), 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) [2022-09-29 22:15:56,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:15:56,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-09-29 22:16:04,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 22:16:04,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:16:04,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:16:04,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2626602, now seen corresponding path program 1 times [2022-09-29 22:16:04,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:16:04,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936846916] [2022-09-29 22:16:04,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:16:04,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:16:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:16:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-09-29 22:16:04,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:16:04,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936846916] [2022-09-29 22:16:04,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936846916] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:16:04,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:16:04,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-29 22:16:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809658533] [2022-09-29 22:16:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:16:04,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-29 22:16:04,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:16:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-29 22:16:04,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-29 22:16:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:04,555 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:16:04,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2022-09-29 22:16:04,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:04,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-09-29 22:16:04,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:16:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-09-29 22:16:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 22:16:07,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-29 22:16:07,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:16:07,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:16:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1391606810, now seen corresponding path program 1 times [2022-09-29 22:16:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:16:07,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768218128] [2022-09-29 22:16:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:16:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:16:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:16:09,719 ERROR L253 erpolLogProxyWrapper]: Interpolant 451 not inductive [2022-09-29 22:16:10,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 22:16:10,295 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:233) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:879) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:803) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-09-29 22:16:10,299 INFO L158 Benchmark]: Toolchain (without parser) took 19556.69ms. Allocated memory was 178.3MB in the beginning and 609.2MB in the end (delta: 431.0MB). Free memory was 124.4MB in the beginning and 295.5MB in the end (delta: -171.1MB). Peak memory consumption was 335.0MB. Max. memory is 8.0GB. [2022-09-29 22:16:10,299 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.41ms. Allocated memory is still 178.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 22:16:10,300 INFO L158 Benchmark]: Boogie Preprocessor took 147.05ms. Allocated memory was 178.3MB in the beginning and 275.8MB in the end (delta: 97.5MB). Free memory was 124.4MB in the beginning and 245.2MB in the end (delta: -120.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-09-29 22:16:10,300 INFO L158 Benchmark]: RCFGBuilder took 1341.78ms. Allocated memory is still 275.8MB. Free memory was 245.1MB in the beginning and 170.2MB in the end (delta: 74.9MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2022-09-29 22:16:10,301 INFO L158 Benchmark]: TraceAbstraction took 18061.46ms. Allocated memory was 275.8MB in the beginning and 609.2MB in the end (delta: 333.4MB). Free memory was 169.7MB in the beginning and 295.5MB in the end (delta: -125.8MB). Peak memory consumption was 281.5MB. Max. memory is 8.0GB. [2022-09-29 22:16:10,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.41ms. Allocated memory is still 178.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 147.05ms. Allocated memory was 178.3MB in the beginning and 275.8MB in the end (delta: 97.5MB). Free memory was 124.4MB in the beginning and 245.2MB in the end (delta: -120.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * RCFGBuilder took 1341.78ms. Allocated memory is still 275.8MB. Free memory was 245.1MB in the beginning and 170.2MB in the end (delta: 74.9MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * TraceAbstraction took 18061.46ms. Allocated memory was 275.8MB in the beginning and 609.2MB in the end (delta: 333.4MB). Free memory was 169.7MB in the beginning and 295.5MB in the end (delta: -125.8MB). Peak memory consumption was 281.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 2, Statistics for Abstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:233) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-09-29 22:16:10,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2022-09-29 22:16:10,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-09-29 22:16:10,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-09-29 22:16:10,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...