/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_1w1r.line296.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 23:01:17,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 23:01:17,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 23:01:17,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 23:01:17,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 23:01:17,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 23:01:17,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 23:01:17,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 23:01:17,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 23:01:17,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 23:01:17,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 23:01:17,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 23:01:17,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 23:01:17,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 23:01:17,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 23:01:17,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 23:01:17,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 23:01:17,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 23:01:17,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 23:01:17,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 23:01:17,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 23:01:17,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 23:01:17,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 23:01:17,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 23:01:17,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 23:01:17,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 23:01:17,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 23:01:17,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 23:01:17,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 23:01:17,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 23:01:17,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 23:01:17,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 23:01:17,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 23:01:17,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 23:01:17,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 23:01:17,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 23:01:17,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 23:01:17,718 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 23:01:17,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 23:01:17,719 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 23:01:17,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 23:01:17,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 23:01:17,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 23:01:17,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 23:01:17,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 23:01:17,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 23:01:17,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 23:01:17,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 23:01:17,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 23:01:17,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 23:01:17,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 23:01:17,945 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 23:01:17,946 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 23:01:17,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line296.bpl [2022-09-29 23:01:17,948 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line296.bpl' [2022-09-29 23:01:18,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 23:01:18,044 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 23:01:18,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 23:01:18,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 23:01:18,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 23:01:18,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 23:01:18,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 23:01:18,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 23:01:18,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 23:01:18,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/1) ... [2022-09-29 23:01:18,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 23:01:18,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:18,289 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 23:01:18,313 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 23:01:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 23:01:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 23:01:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 23:01:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 23:01:18,333 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 23:01:18,551 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 23:01:18,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 23:01:19,746 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 23:01:19,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 23:01:19,766 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 23:01:19,769 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 11:01:19 BoogieIcfgContainer [2022-09-29 23:01:19,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 23:01:19,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 23:01:19,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 23:01:19,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 23:01:19,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:01:18" (1/2) ... [2022-09-29 23:01:19,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36776990 and model type divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 11:01:19, skipping insertion in model container [2022-09-29 23:01:19,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line296.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 11:01:19" (2/2) ... [2022-09-29 23:01:19,781 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line296.bpl [2022-09-29 23:01:19,788 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 23:01:19,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 23:01:19,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 23:01:19,799 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 23:01:19,937 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 23:01:20,000 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 23:01:20,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 23:01:20,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:20,003 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 23:01:20,016 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 23:01:20,042 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 23:01:20,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 23:01:20,056 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;@7a567a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 23:01:20,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 23:01:20,059 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 23:01:20,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 23:01:20,065 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 23:01:20,068 INFO L307 ceAbstractionStarter]: Result for error location pusherErr0ASSERT_VIOLATIONASSERT was SAFE (1/3) [2022-09-29 23:01:20,084 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 23:01:20,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 23:01:20,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:20,087 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 23:01:20,099 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 23:01:20,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 23:01:20,101 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;@7a567a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 23:01:20,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 23:01:20,103 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 23:01:20,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 23:01:20,177 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 23:01:20,178 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/3) [2022-09-29 23:01:20,194 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 23:01:20,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 23:01:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:20,253 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 23:01:20,255 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 23:01:20,259 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 23:01:20,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == pusherErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 23:01:20,260 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;@7a567a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 23:01:20,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 23:01:20,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:01:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:01:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 654433682, now seen corresponding path program 1 times [2022-09-29 23:01:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:01:20,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663080430] [2022-09-29 23:01:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:20,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:01:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:20,920 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 23:01:20,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:01:20,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663080430] [2022-09-29 23:01:20,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663080430] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 23:01:20,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 23:01:20,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 23:01:20,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323404009] [2022-09-29 23:01:20,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:01:20,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 23:01:20,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:01:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 23:01:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 23:01:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:20,953 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:01:20,954 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) [2022-09-29 23:01:20,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:20,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 23:01:20,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:01:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:01:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash 596484274, now seen corresponding path program 1 times [2022-09-29 23:01:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:01:20,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291633453] [2022-09-29 23:01:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:01:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:23,045 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 23:01:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:01:23,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291633453] [2022-09-29 23:01:23,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291633453] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 23:01:23,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 23:01:23,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-09-29 23:01:23,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929421791] [2022-09-29 23:01:23,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:01:23,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-09-29 23:01:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:01:23,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-09-29 23:01:23,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1758, Unknown=0, NotChecked=0, Total=1892 [2022-09-29 23:01:23,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:23,056 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:01:23,057 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) [2022-09-29 23:01:23,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:23,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:29,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 23:01:29,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:01:29,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:01:29,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1313628637, now seen corresponding path program 1 times [2022-09-29 23:01:29,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:01:29,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972489345] [2022-09-29 23:01:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:29,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:01:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 23:01:30,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:01:30,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972489345] [2022-09-29 23:01:30,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972489345] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 23:01:30,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665042651] [2022-09-29 23:01:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:30,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 23:01:30,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:30,790 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) [2022-09-29 23:01:30,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-29 23:01:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:31,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 51 conjunts are in the unsatisfiable core [2022-09-29 23:01:31,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 23:01:32,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-09-29 23:01:32,302 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 [2022-09-29 23:01:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 23:01:32,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 23:01:32,353 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 [2022-09-29 23:01:33,764 INFO L356 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2022-09-29 23:01:33,765 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 [2022-09-29 23:01:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 23:01:33,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665042651] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 23:01:33,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 23:01:33,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 16, 16] total 40 [2022-09-29 23:01:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732445748] [2022-09-29 23:01:33,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 23:01:33,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-09-29 23:01:33,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:01:33,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-09-29 23:01:33,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1511, Unknown=0, NotChecked=0, Total=1640 [2022-09-29 23:01:33,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:33,969 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:01:33,970 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) [2022-09-29 23:01:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:33,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:37,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-29 23:01:37,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-29 23:01:37,868 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 [2022-09-29 23:01:37,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:01:37,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:01:37,869 INFO L85 PathProgramCache]: Analyzing trace with hash 184761619, now seen corresponding path program 1 times [2022-09-29 23:01:37,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:01:37,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212069874] [2022-09-29 23:01:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:37,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:01:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-09-29 23:01:38,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:01:38,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212069874] [2022-09-29 23:01:38,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212069874] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 23:01:38,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 23:01:38,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-29 23:01:38,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437827560] [2022-09-29 23:01:38,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:01:38,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-29 23:01:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:01:38,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-29 23:01:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-29 23:01:38,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:38,078 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:01:38,078 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 23:01:38,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:38,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:38,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-09-29 23:01:38,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-29 23:01:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 23:01:44,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 23:01:44,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:01:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:01:44,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2145516222, now seen corresponding path program 1 times [2022-09-29 23:01:44,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:01:44,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527286367] [2022-09-29 23:01:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:01:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 303 proven. 45 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-09-29 23:01:46,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:01:46,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527286367] [2022-09-29 23:01:46,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527286367] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 23:01:46,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811796483] [2022-09-29 23:01:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:01:46,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 23:01:46,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:01:46,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 23:01:46,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 23:01:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:01:46,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 61 conjunts are in the unsatisfiable core [2022-09-29 23:01:46,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 23:01:47,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-09-29 23:01:48,067 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 [2022-09-29 23:01:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 219 proven. 45 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-09-29 23:01:48,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 23:01:48,111 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 [2022-09-29 23:01:48,787 INFO L356 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2022-09-29 23:01:48,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 37 [2022-09-29 23:01:48,960 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 249 proven. 15 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-09-29 23:01:48,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811796483] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 23:01:48,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 23:01:48,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 15, 13] total 41 [2022-09-29 23:01:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878865561] [2022-09-29 23:01:48,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 23:01:48,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-09-29 23:01:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:01:48,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-09-29 23:01:48,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1560, Unknown=0, NotChecked=0, Total=1722 [2022-09-29 23:01:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:48,968 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:01:48,969 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) [2022-09-29 23:01:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:01:48,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:01:48,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-09-29 23:01:48,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 23:01:48,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:02:14,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:02:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-29 23:02:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-29 23:02:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 23:02:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-09-29 23:02:14,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-29 23:02:14,266 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 [2022-09-29 23:02:14,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting pusherErr0ASSERT_VIOLATIONASSERT === [pusherErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:02:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:02:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1582704254, now seen corresponding path program 1 times [2022-09-29 23:02:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:02:14,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418477240] [2022-09-29 23:02:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:02:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:05:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat