/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.line296.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:02:30,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:02:30,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:02:30,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:02:30,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:02:30,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:02:30,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:02:30,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:02:30,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:02:30,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:02:30,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:02:30,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 15:02:30,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 15:02:30,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 15:02:30,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 15:02:30,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 15:02:30,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 15:02:30,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 15:02:30,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 15:02:30,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 15:02:30,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 15:02:30,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 15:02:30,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 15:02:30,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 15:02:30,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 15:02:30,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 15:02:30,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 15:02:30,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 15:02:30,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:02:30,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:02:30,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:02:30,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:02:30,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:02:30,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:02:30,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:02:30,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:02:30,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:02:30,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:02:30,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:02:30,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:02:30,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:02:30,816 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:02:30,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:02:30,817 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:02:30,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:02:30,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:02:30,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:02:30,969 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:02:30,970 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:02:30,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line296.bpl [2022-10-03 15:02:30,971 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line296.bpl' [2022-10-03 15:02:31,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:02:31,055 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:02:31,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:02:31,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:02:31,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:02:31,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:02:31,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:02:31,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:02:31,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:02:31,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/1) ... [2022-10-03 15:02:31,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:02:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:31,271 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) [2022-10-03 15:02:31,282 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 [2022-10-03 15:02:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:02:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:02:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:02:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:02:31,339 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 15:02:31,533 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:02:31,534 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:02:32,366 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:02:32,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:02:32,381 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:02:32,384 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:02:32 BoogieIcfgContainer [2022-10-03 15:02:32,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:02:32,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:02:32,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:02:32,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:02:32,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:02:31" (1/2) ... [2022-10-03 15:02:32,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2966d428 and model type divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:02:32, skipping insertion in model container [2022-10-03 15:02:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:02:32" (2/2) ... [2022-10-03 15:02:32,410 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line296.bpl [2022-10-03 15:02:32,415 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:02:32,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:02:32,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:02:32,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:02:32,542 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:02:32,602 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-03 15:02:32,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:02:32,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:32,610 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) [2022-10-03 15:02:32,611 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 [2022-10-03 15:02:32,642 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:02:32,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:02:32,652 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;@623b2025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:02:32,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:02:32,654 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 15:02:32,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 15:02:32,662 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 15:02:32,663 INFO L307 ceAbstractionStarter]: Result for error location pusherErr0ASSERT_VIOLATIONASSERT was SAFE (1/3) [2022-10-03 15:02:32,678 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-03 15:02:32,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:02:32,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:32,680 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) [2022-10-03 15:02:32,681 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 [2022-10-03 15:02:32,685 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:02:32,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 15:02:32,686 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;@623b2025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:02:32,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:02:32,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 15:02:32,735 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 15:02:32,736 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/3) [2022-10-03 15:02:32,743 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-03 15:02:32,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:02:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:32,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 15:02:32,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 15:02:32,805 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:02:32,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:02:32,806 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;@623b2025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:02:32,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:02:32,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:02:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:02:32,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1313733290, now seen corresponding path program 1 times [2022-10-03 15:02:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:02:32,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859619909] [2022-10-03 15:02:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:02:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:02:33,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:02:33,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859619909] [2022-10-03 15:02:33,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859619909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:02:33,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:02:33,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:02:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23677852] [2022-10-03 15:02:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:02:33,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:02:33,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:02:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:02:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:02:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:33,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:02:33,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 126.5) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:02:33,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:33,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:02:33,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:02:33,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:02:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1654427342, now seen corresponding path program 1 times [2022-10-03 15:02:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:02:33,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595189383] [2022-10-03 15:02:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:02:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:02:34,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:02:34,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595189383] [2022-10-03 15:02:34,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595189383] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:02:34,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:02:34,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-10-03 15:02:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795746203] [2022-10-03 15:02:34,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:02:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-03 15:02:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:02:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-03 15:02:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1758, Unknown=0, NotChecked=0, Total=1892 [2022-10-03 15:02:34,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:34,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:02:34,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 5.8604651162790695) internal successors, (252), 44 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:02:34,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:34,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:40,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:40,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:02:40,233 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:02:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:02:40,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1307417665, now seen corresponding path program 1 times [2022-10-03 15:02:40,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:02:40,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536540025] [2022-10-03 15:02:40,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:02:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:40,893 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:02:40,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:02:40,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536540025] [2022-10-03 15:02:40,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536540025] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:02:40,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002048800] [2022-10-03 15:02:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:40,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:02:40,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:40,895 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) [2022-10-03 15:02:40,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 15:02:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:41,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-03 15:02:41,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:02:41,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-03 15:02:42,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-10-03 15:02:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:02:42,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:02:42,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-10-03 15:02:42,898 INFO L356 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2022-10-03 15:02:42,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 37 [2022-10-03 15:02:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:02:43,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002048800] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:02:43,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:02:43,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 16, 16] total 40 [2022-10-03 15:02:43,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789240902] [2022-10-03 15:02:43,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:02:43,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-03 15:02:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:02:43,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-03 15:02:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1511, Unknown=0, NotChecked=0, Total=1640 [2022-10-03 15:02:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:43,043 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:02:43,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 21.275) internal successors, (851), 41 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:02:43,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:43,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:43,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-03 15:02:45,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-03 15:02:46,123 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 [2022-10-03 15:02:46,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:02:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:02:46,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1913846415, now seen corresponding path program 1 times [2022-10-03 15:02:46,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:02:46,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557578314] [2022-10-03 15:02:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:46,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:02:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-10-03 15:02:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:02:46,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557578314] [2022-10-03 15:02:46,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557578314] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:02:46,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:02:46,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-03 15:02:46,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123840839] [2022-10-03 15:02:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:02:46,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-03 15:02:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:02:46,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-03 15:02:46,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-03 15:02:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:46,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:02:46,264 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) [2022-10-03 15:02:46,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:46,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:46,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-10-03 15:02:46,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-03 15:02:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:02:51,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-03 15:02:51,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:02:51,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:02:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2050397391, now seen corresponding path program 1 times [2022-10-03 15:02:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:02:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191518679] [2022-10-03 15:02:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:02:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 303 proven. 45 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-10-03 15:02:53,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:02:53,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191518679] [2022-10-03 15:02:53,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191518679] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:02:53,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522672217] [2022-10-03 15:02:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:02:53,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:02:53,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:02:53,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:02:53,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 15:02:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:02:53,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 61 conjunts are in the unsatisfiable core [2022-10-03 15:02:53,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:02:54,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-03 15:02:54,410 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-10-03 15:02:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 219 proven. 45 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-03 15:02:54,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:02:54,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-10-03 15:02:54,939 INFO L356 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2022-10-03 15:02:54,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 37 [2022-10-03 15:02:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 249 proven. 15 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-03 15:02:55,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522672217] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:02:55,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:02:55,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 15, 13] total 41 [2022-10-03 15:02:55,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630177265] [2022-10-03 15:02:55,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:02:55,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-03 15:02:55,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:02:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-03 15:02:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1560, Unknown=0, NotChecked=0, Total=1722 [2022-10-03 15:02:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:55,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:02:55,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 32.926829268292686) internal successors, (1350), 42 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:02:55,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:02:55,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:02:55,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-03 15:02:55,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:02:55,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:03:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:03:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-10-03 15:03:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-03 15:03:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:03:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-10-03 15:03:18,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-03 15:03:19,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:03:19,088 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:03:19,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:03:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash 547739456, now seen corresponding path program 1 times [2022-10-03 15:03:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:03:19,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746994106] [2022-10-03 15:03:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:03:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:06:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat