/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.line1589.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:59:04,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:59:04,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:59:04,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:59:04,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:59:04,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:59:04,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:59:04,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:59:04,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:59:04,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:59:04,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:59:04,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:59:04,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:59:04,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:59:04,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:59:04,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:59:04,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:59:04,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:59:04,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:59:04,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:59:04,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:59:04,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:59:04,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:59:04,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:59:04,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 21:59:04,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:59:04,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:59:04,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:59:04,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:59:04,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:59:04,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:59:04,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:59:04,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:59:04,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:59:04,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:59:04,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:59:04,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:59:04,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:59:04,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:59:04,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:59:04,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:59:04,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:59:04,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:59:04,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:59:04,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:59:04,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:59:04,736 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:59:04,737 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:59:04,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1589.bpl [2022-09-29 21:59:04,738 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1589.bpl' [2022-09-29 21:59:04,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:59:04,812 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:59:04,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:59:04,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:59:04,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:59:04,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:59:04,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:59:04,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:59:04,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:59:04,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/1) ... [2022-09-29 21:59:04,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:59:04,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:59:04,973 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 21:59:04,982 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 21:59:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 21:59:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 21:59:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:59:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:59:05,005 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 21:59:05,137 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:59:05,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:59:06,106 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:59:06,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:59:06,146 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 21:59:06,149 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:59:06 BoogieIcfgContainer [2022-09-29 21:59:06,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:59:06,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:59:06,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:59:06,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:59:06,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:59:04" (1/2) ... [2022-09-29 21:59:06,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734291bb and model type divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:59:06, skipping insertion in model container [2022-09-29 21:59:06,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:59:06" (2/2) ... [2022-09-29 21:59:06,160 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1589.bpl [2022-09-29 21:59:06,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:59:06,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:59:06,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:59:06,174 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:59:06,295 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 21:59:06,354 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:59:06,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:59:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:59:06,356 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 21:59:06,360 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 21:59:06,395 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:59:06,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:59:06,414 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;@6b7f95d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:59:06,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:59:06,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:59:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:59:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash -535294944, now seen corresponding path program 1 times [2022-09-29 21:59:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:59:06,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721977500] [2022-09-29 21:59:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:59:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:59:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:59:07,275 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 21:59:07,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:59:07,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721977500] [2022-09-29 21:59:07,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721977500] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:59:07,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:59:07,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:59:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218566100] [2022-09-29 21:59:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:59:07,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:59:07,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:59:07,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:59:07,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:59:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:07,301 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:59:07,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 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 21:59:07,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:07,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:59:07,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:59:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:59:07,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1256779945, now seen corresponding path program 1 times [2022-09-29 21:59:07,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:59:07,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352327088] [2022-09-29 21:59:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:59:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:59:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:59:08,541 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 21:59:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:59:08,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352327088] [2022-09-29 21:59:08,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352327088] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:59:08,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:59:08,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-29 21:59:08,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187232596] [2022-09-29 21:59:08,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:59:08,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-29 21:59:08,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:59:08,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-29 21:59:08,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-09-29 21:59:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:08,547 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:59:08,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 49.75) internal successors, (796), 17 states have internal predecessors, (796), 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 21:59:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:59:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-29 21:59:10,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:59:10,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:59:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:59:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash 218934396, now seen corresponding path program 1 times [2022-09-29 21:59:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:59:10,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536337839] [2022-09-29 21:59:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:59:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:59:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:59:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 250 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:59:11,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:59:11,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536337839] [2022-09-29 21:59:11,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536337839] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:59:11,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281854850] [2022-09-29 21:59:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:59:11,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:59:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:59:11,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:59:11,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-29 21:59:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:59:11,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2841 conjuncts, 465 conjunts are in the unsatisfiable core [2022-09-29 21:59:11,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:59:11,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-09-29 21:59:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:12,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-29 21:59:12,862 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 11 treesize of output 7 [2022-09-29 21:59:12,870 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 11 treesize of output 7 [2022-09-29 21:59:14,749 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-09-29 21:59:14,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-09-29 21:59:15,158 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-09-29 21:59:15,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 29 [2022-09-29 21:59:15,174 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-09-29 21:59:15,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2022-09-29 21:59:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:15,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-09-29 21:59:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:15,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-09-29 21:59:22,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:22,939 INFO L356 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2022-09-29 21:59:22,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 89 [2022-09-29 21:59:22,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:22,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 67 [2022-09-29 21:59:33,129 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 21:59:49,392 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:00,903 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:11,062 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:21,225 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:31,424 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:41,594 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:00:51,840 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:01:01,996 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:01:12,242 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:01:14,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:14,710 INFO L356 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-09-29 22:01:14,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2022-09-29 22:01:16,068 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 22:01:16,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 85 [2022-09-29 22:01:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:16,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:01:16,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:01:16,088 INFO L356 Elim1Store]: treesize reduction 37, result has 7.5 percent of original size [2022-09-29 22:01:16,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 53 [2022-09-29 22:01:17,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:17,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:01:17,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 44 [2022-09-29 22:01:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:17,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 44 [2022-09-29 22:01:19,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2022-09-29 22:01:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:19,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-09-29 22:01:23,945 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 22:01:23,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 93 [2022-09-29 22:01:23,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:23,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:23,960 INFO L356 Elim1Store]: treesize reduction 41, result has 6.8 percent of original size [2022-09-29 22:01:23,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 53 [2022-09-29 22:01:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:01:25,267 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-09-29 22:01:25,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 27 [2022-09-29 22:01:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 163 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:01:25,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 22:05:35,758 INFO L356 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2022-09-29 22:05:35,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5114 treesize of output 3670 [2022-09-29 22:05:36,032 INFO L356 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2022-09-29 22:05:36,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3633 treesize of output 2885 [2022-09-29 22:05:36,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:05:52,797 WARN L233 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 117 DAG size of output: 81 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-09-29 22:05:52,798 INFO L356 Elim1Store]: treesize reduction 620, result has 59.0 percent of original size [2022-09-29 22:05:52,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 11502401333 treesize of output 10118590768 Received shutdown request... [2022-09-29 22:13:32,466 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:13:32,466 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:13:32,466 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:13:32,478 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-09-29 22:13:32,482 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 22:13:32,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-29 22:13:32,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-29 22:13:32,705 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1148 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-32-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-09-29 22:13:32,708 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-29 22:13:32,710 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/2) [2022-09-29 22:13:32,711 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-29 22:13:32,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-29 22:13:32,713 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1589.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 10:13:32 BasicIcfg [2022-09-29 22:13:32,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-29 22:13:32,714 INFO L158 Benchmark]: Toolchain (without parser) took 867902.03ms. Allocated memory was 255.9MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 203.0MB in the beginning and 795.3MB in the end (delta: -592.3MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-09-29 22:13:32,714 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.37ms. Allocated memory is still 255.9MB. Free memory is still 209.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 22:13:32,714 INFO L158 Benchmark]: Boogie Preprocessor took 132.13ms. Allocated memory is still 255.9MB. Free memory was 202.8MB in the beginning and 222.3MB in the end (delta: -19.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-09-29 22:13:32,714 INFO L158 Benchmark]: RCFGBuilder took 1201.27ms. Allocated memory was 255.9MB in the beginning and 407.9MB in the end (delta: 152.0MB). Free memory was 222.0MB in the beginning and 346.4MB in the end (delta: -124.4MB). Peak memory consumption was 58.9MB. Max. memory is 8.0GB. [2022-09-29 22:13:32,715 INFO L158 Benchmark]: TraceAbstraction took 866561.72ms. Allocated memory was 407.9MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 345.9MB in the beginning and 795.3MB in the end (delta: -449.4MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-09-29 22:13:32,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.37ms. Allocated memory is still 255.9MB. Free memory is still 209.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 132.13ms. Allocated memory is still 255.9MB. Free memory was 202.8MB in the beginning and 222.3MB in the end (delta: -19.5MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1201.27ms. Allocated memory was 255.9MB in the beginning and 407.9MB in the end (delta: 152.0MB). Free memory was 222.0MB in the beginning and 346.4MB in the end (delta: -124.4MB). Peak memory consumption was 58.9MB. Max. memory is 8.0GB. * TraceAbstraction took 866561.72ms. Allocated memory was 407.9MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 345.9MB in the beginning and 795.3MB in the end (delta: -449.4MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 531, positive: 513, positive conditional: 513, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6955, positive: 6740, positive conditional: 6740, positive unconditional: 0, negative: 215, negative conditional: 215, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6741, positive: 6740, positive conditional: 0, positive unconditional: 6740, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3427, positive: 3426, positive conditional: 0, positive unconditional: 3426, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6741, positive: 3314, positive conditional: 0, positive unconditional: 3314, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3427, unknown conditional: 0, unknown unconditional: 3427] , Statistics on independence cache: Total cache size (in pairs): 513, Positive cache size: 513, Positive conditional cache size: 0, Positive unconditional cache size: 513, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 18, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1531, positive: 1487, positive conditional: 1487, positive unconditional: 0, negative: 44, negative conditional: 44, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6955, positive: 6740, positive conditional: 6740, positive unconditional: 0, negative: 215, negative conditional: 215, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6741, positive: 6740, positive conditional: 0, positive unconditional: 6740, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3427, positive: 3426, positive conditional: 0, positive unconditional: 3426, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6741, positive: 3314, positive conditional: 0, positive unconditional: 3314, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3427, unknown conditional: 0, unknown unconditional: 3427] , Statistics on independence cache: Total cache size (in pairs): 1487, Positive cache size: 1487, Positive conditional cache size: 0, Positive unconditional cache size: 1487, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 62, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4893, positive: 4740, positive conditional: 4740, positive unconditional: 0, negative: 153, negative conditional: 153, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6955, positive: 6740, positive conditional: 6740, positive unconditional: 0, negative: 215, negative conditional: 215, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6741, positive: 6740, positive conditional: 0, positive unconditional: 6740, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3427, positive: 3426, positive conditional: 0, positive unconditional: 3426, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6741, positive: 3314, positive conditional: 0, positive unconditional: 3314, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3427, unknown conditional: 0, unknown unconditional: 3427] , Statistics on independence cache: Total cache size (in pairs): 3427, Positive cache size: 3426, Positive conditional cache size: 0, Positive unconditional cache size: 3426, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Independence queries for same thread: 214, Statistics for Abstraction: - TimeoutResultAtElement [Line: 1589]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1148 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-32-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 1463 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 866.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1527 NumberOfCodeBlocks, 1527 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1525 ConstructedInterpolants, 0 QuantifiedInterpolants, 6512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown