/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.line1248.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:38:02,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:38:02,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:38:02,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:38:02,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:38:02,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:38:02,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:38:02,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:38:02,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:38:02,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:38:02,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:38:02,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:38:02,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:38:02,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:38:02,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:38:02,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:38:02,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:38:02,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:38:02,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:38:02,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:38:02,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:38:02,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:38:02,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:38:02,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:38:02,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 21:38:02,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:38:02,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:38:02,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:38:02,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:38:02,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:38:02,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:38:02,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:38:02,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:38:02,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:38:02,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:38:02,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:38:02,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:38:02,165 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:38:02,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:38:02,166 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:38:02,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:38:02,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:38:02,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:38:02,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:38:02,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:38:02,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:38:02,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:38:02,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:38:02,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:38:02,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:38:02,169 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:38:02,169 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:38:02,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:38:02,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:38:02,170 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:38:02,170 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:38:02,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:38:02,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:38:02,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:38:02,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:38:02,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:38:02,376 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:38:02,377 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:38:02,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1248.bpl [2022-09-29 21:38:02,379 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1248.bpl' [2022-09-29 21:38:02,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:38:02,463 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:38:02,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:38:02,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:38:02,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:38:02,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:38:02,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:38:02,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:38:02,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:38:02,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/1) ... [2022-09-29 21:38:02,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:38:02,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:38:02,644 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 21:38:02,656 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 21:38:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 21:38:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 21:38:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:38:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:38:02,675 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 21:38:02,876 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:38:02,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:38:03,825 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:38:03,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:38:03,868 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 21:38:03,871 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:38:03 BoogieIcfgContainer [2022-09-29 21:38:03,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:38:03,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:38:03,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:38:03,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:38:03,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:38:02" (1/2) ... [2022-09-29 21:38:03,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481de7af and model type divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:38:03, skipping insertion in model container [2022-09-29 21:38:03,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:38:03" (2/2) ... [2022-09-29 21:38:03,884 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1248.bpl [2022-09-29 21:38:03,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:38:03,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:38:03,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:38:03,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:38:04,036 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 21:38:04,106 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:38:04,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:38:04,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:38:04,109 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 21:38:04,138 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 21:38:04,164 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:38:04,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:38:04,176 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;@2fc3dac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:38:04,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:38:04,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:38:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:38:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash -625755561, now seen corresponding path program 1 times [2022-09-29 21:38:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:38:04,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423984054] [2022-09-29 21:38:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:38:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:05,027 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 21:38:05,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:38:05,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423984054] [2022-09-29 21:38:05,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423984054] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:38:05,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:38:05,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:38:05,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329078231] [2022-09-29 21:38:05,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:38:05,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:38:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:38:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:38:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:38:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:05,071 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:38:05,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.5) internal successors, (461), 2 states have internal predecessors, (461), 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 21:38:05,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:05,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:05,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:38:05,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:38:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:38:05,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2058231416, now seen corresponding path program 1 times [2022-09-29 21:38:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:38:05,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226519330] [2022-09-29 21:38:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:05,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:38:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:06,134 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 21:38:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:38:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226519330] [2022-09-29 21:38:06,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226519330] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:38:06,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:38:06,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-29 21:38:06,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439912857] [2022-09-29 21:38:06,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:38:06,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-29 21:38:06,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:38:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-29 21:38:06,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-09-29 21:38:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:06,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:38:06,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 33.0) internal successors, (528), 17 states have internal predecessors, (528), 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 21:38:06,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:06,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 21:38:08,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:38:08,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:38:08,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:38:08,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1145427114, now seen corresponding path program 1 times [2022-09-29 21:38:08,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:38:08,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321882606] [2022-09-29 21:38:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:38:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-09-29 21:38:11,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:38:11,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321882606] [2022-09-29 21:38:11,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321882606] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:38:11,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:38:11,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-09-29 21:38:11,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610015942] [2022-09-29 21:38:11,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:38:11,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-09-29 21:38:11,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:38:11,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-09-29 21:38:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=4082, Unknown=0, NotChecked=0, Total=4290 [2022-09-29 21:38:11,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:11,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:38:11,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 13.090909090909092) internal successors, (864), 66 states have internal predecessors, (864), 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 21:38:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 21:38:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-29 21:38:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:38:29,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-29 21:38:29,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:38:29,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:38:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash 701443668, now seen corresponding path program 1 times [2022-09-29 21:38:29,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:38:29,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59204675] [2022-09-29 21:38:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:38:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:32,146 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 21:38:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:38:32,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59204675] [2022-09-29 21:38:32,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59204675] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:38:32,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:38:32,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-09-29 21:38:32,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460994539] [2022-09-29 21:38:32,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:38:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-09-29 21:38:32,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:38:32,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-09-29 21:38:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3592, Unknown=0, NotChecked=0, Total=3782 [2022-09-29 21:38:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:32,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:38:32,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 9.209677419354838) internal successors, (571), 62 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 21:38:32,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:32,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-29 21:38:32,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:38:32,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:38:49,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-29 21:38:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:38:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:38:49,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 21:38:49,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:38:49,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:38:49,468 INFO L85 PathProgramCache]: Analyzing trace with hash -851423052, now seen corresponding path program 1 times [2022-09-29 21:38:49,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:38:49,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802868845] [2022-09-29 21:38:49,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:49,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:38:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 200 proven. 42 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2022-09-29 21:38:50,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:38:50,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802868845] [2022-09-29 21:38:50,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802868845] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:38:50,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036985705] [2022-09-29 21:38:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:38:50,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:38:50,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:38:50,443 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 21:38:50,444 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 21:38:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:38:51,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 171 conjunts are in the unsatisfiable core [2022-09-29 21:38:51,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:38:52,099 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 6 treesize of output 5 [2022-09-29 21:38:52,683 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 7 treesize of output 3 [2022-09-29 21:38:53,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 21:38:53,347 INFO L356 Elim1Store]: treesize reduction 123, result has 14.0 percent of original size [2022-09-29 21:38:53,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 41 treesize of output 33 [2022-09-29 21:38:54,338 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 32 treesize of output 23 [2022-09-29 21:38:54,556 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 12 treesize of output 11 [2022-09-29 21:38:55,227 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 23 treesize of output 22 [2022-09-29 21:38:55,349 INFO L356 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-09-29 21:38:55,349 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 18 treesize of output 20 [2022-09-29 21:38:56,387 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:38:56,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 12 [2022-09-29 21:38:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 961 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:38:56,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:38:57,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 14 [2022-09-29 21:39:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 892 proven. 78 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:39:00,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036985705] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:39:00,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:39:00,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 60, 50] total 118 [2022-09-29 21:39:00,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406692779] [2022-09-29 21:39:00,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:39:00,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-09-29 21:39:00,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:39:00,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-09-29 21:39:00,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=776, Invalid=13030, Unknown=0, NotChecked=0, Total=13806 [2022-09-29 21:39:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:39:00,163 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:39:00,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 29.11864406779661) internal successors, (3436), 118 states have internal predecessors, (3436), 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 21:39:00,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:39:00,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-29 21:39:00,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:39:00,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:39:00,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:39:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:39:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-29 21:39:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:39:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:39:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-09-29 21:39:30,571 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 21:39:30,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:39:30,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:39:30,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:39:30,751 INFO L85 PathProgramCache]: Analyzing trace with hash 189021074, now seen corresponding path program 1 times [2022-09-29 21:39:30,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:39:30,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408886760] [2022-09-29 21:39:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:39:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:39:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:39:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 64323 backedges. 12976 proven. 432 refuted. 0 times theorem prover too weak. 50915 trivial. 0 not checked. [2022-09-29 21:39:54,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:39:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408886760] [2022-09-29 21:39:54,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408886760] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:39:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206412642] [2022-09-29 21:39:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:39:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:39:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:39:54,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:39:54,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-29 21:39:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:39:57,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 18469 conjuncts, 484 conjunts are in the unsatisfiable core [2022-09-29 21:39:57,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:39:58,658 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 21:39:58,663 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 21:39:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,034 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 23 treesize of output 22 [2022-09-29 21:39:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,045 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 21 treesize of output 20 [2022-09-29 21:39:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,267 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 23 treesize of output 22 [2022-09-29 21:39:59,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,281 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 21 treesize of output 20 [2022-09-29 21:39:59,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,763 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 14 treesize of output 16 [2022-09-29 21:39:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:39:59,778 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 14 treesize of output 16 [2022-09-29 21:40:00,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:00,082 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 19 treesize of output 18 [2022-09-29 21:40:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:00,089 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 23 treesize of output 22 [2022-09-29 21:40:03,948 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 21:40:03,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-29 21:40:04,577 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-09-29 21:40:04,578 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 2 case distinctions, treesize of input 55 treesize of output 57 [2022-09-29 21:40:04,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:04,593 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-09-29 21:40:04,593 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 38 [2022-09-29 21:40:04,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-09-29 21:40:18,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 21:40:18,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:18,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:18,220 INFO L356 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-09-29 21:40:18,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 158 treesize of output 112 [2022-09-29 21:40:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:18,242 INFO L356 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-09-29 21:40:18,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 80 [2022-09-29 21:40:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:20,135 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-29 21:40:20,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 57 [2022-09-29 21:40:22,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:22,838 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-09-29 21:40:22,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 39 [2022-09-29 21:40:23,508 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 10 treesize of output 9 [2022-09-29 21:40:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:40:25,134 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-09-29 21:40:25,134 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 2 case distinctions, treesize of input 45 treesize of output 38 [2022-09-29 21:40:25,592 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-09-29 21:40:25,592 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 16 treesize of output 18 [2022-09-29 21:40:27,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 21:40:27,427 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:40:27,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 43 treesize of output 23 [2022-09-29 21:40:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 64323 backedges. 7536 proven. 79 refuted. 0 times theorem prover too weak. 56708 trivial. 0 not checked. [2022-09-29 21:40:27,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:40:47,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 [2022-09-29 21:43:53,124 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:43:53,124 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 2480 treesize of output 2498 [2022-09-29 21:44:05,919 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:44:05,920 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1268 treesize of output 1190 [2022-09-29 21:44:05,936 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:44:05,936 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1192 treesize of output 859 [2022-09-29 21:44:06,052 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:44:06,053 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1262 treesize of output 1178 [2022-09-29 21:44:06,069 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:44:06,070 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1180 treesize of output 861 [2022-09-29 21:44:59,555 INFO L356 Elim1Store]: treesize reduction 102, result has 48.7 percent of original size [2022-09-29 21:44:59,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 5911 treesize of output 3440 [2022-09-29 21:45:00,021 INFO L356 Elim1Store]: treesize reduction 102, result has 48.7 percent of original size [2022-09-29 21:45:00,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 3319 treesize of output 1874 [2022-09-29 21:45:02,756 INFO L356 Elim1Store]: treesize reduction 1455, result has 22.8 percent of original size [2022-09-29 21:45:02,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 66 case distinctions, treesize of input 562416 treesize of output 482331 [2022-09-29 21:46:06,721 WARN L233 SmtUtils]: Spent 45.20s on a formula simplification. DAG size of input: 1148 DAG size of output: 207 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-09-29 21:46:06,722 INFO L356 Elim1Store]: treesize reduction 5271, result has 8.5 percent of original size [2022-09-29 21:46:06,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 26 new quantified variables, introduced 231 case distinctions, treesize of input 180650975 treesize of output 166420470 [2022-09-29 21:50:11,192 WARN L233 SmtUtils]: Spent 4.07m on a formula simplification that was a NOOP. DAG size: 48223 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-09-29 21:51:34,697 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 21:51:34,697 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 21:51:34,697 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 21:51:34,786 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-09-29 21:51:34,792 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 21:51:34,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-29 21:51:35,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:51:35,016 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 7391 with TraceHistMax 22,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-57-6-15-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2022-09-29 21:51:35,020 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-09-29 21:51:35,021 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/2) [2022-09-29 21:51:35,022 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-29 21:51:35,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-29 21:51:35,024 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1248.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 09:51:35 BasicIcfg [2022-09-29 21:51:35,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-29 21:51:35,025 INFO L158 Benchmark]: Toolchain (without parser) took 812562.24ms. Allocated memory was 175.1MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 123.8MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2022-09-29 21:51:35,025 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 21:51:35,025 INFO L158 Benchmark]: Boogie Preprocessor took 132.37ms. Allocated memory is still 175.1MB. Free memory was 123.7MB in the beginning and 144.5MB in the end (delta: -20.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-29 21:51:35,025 INFO L158 Benchmark]: RCFGBuilder took 1266.73ms. Allocated memory was 175.1MB in the beginning and 266.3MB in the end (delta: 91.2MB). Free memory was 144.5MB in the beginning and 204.6MB in the end (delta: -60.1MB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. [2022-09-29 21:51:35,026 INFO L158 Benchmark]: TraceAbstraction took 811151.14ms. Allocated memory was 266.3MB in the beginning and 4.9GB in the end (delta: 4.6GB). Free memory was 204.1MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2022-09-29 21:51:35,027 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 0.13ms. Allocated memory is still 175.1MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 132.37ms. Allocated memory is still 175.1MB. Free memory was 123.7MB in the beginning and 144.5MB in the end (delta: -20.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1266.73ms. Allocated memory was 175.1MB in the beginning and 266.3MB in the end (delta: 91.2MB). Free memory was 144.5MB in the beginning and 204.6MB in the end (delta: -60.1MB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. * TraceAbstraction took 811151.14ms. Allocated memory was 266.3MB in the beginning and 4.9GB in the end (delta: 4.6GB). Free memory was 204.1MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 247, positive: 236, positive conditional: 236, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 236, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 11, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 877, positive: 850, positive conditional: 850, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 850, Positive conditional cache size: 0, Positive unconditional cache size: 850, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 38, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4609, positive: 4463, positive conditional: 4463, positive unconditional: 0, negative: 146, negative conditional: 146, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 3001, Positive cache size: 3000, Positive conditional cache size: 0, Positive unconditional cache size: 3000, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Independence queries for same thread: 183, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1539, positive: 1484, positive conditional: 1484, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 3344, Positive cache size: 3342, Positive conditional cache size: 0, Positive unconditional cache size: 3342, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 237, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6124, positive: 5936, positive conditional: 5936, positive unconditional: 0, negative: 188, negative conditional: 188, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 5572, Positive cache size: 5567, Positive conditional cache size: 0, Positive unconditional cache size: 5567, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Independence queries for same thread: 422, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 32855, positive: 31810, positive conditional: 31810, positive unconditional: 0, negative: 1045, negative conditional: 1045, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46251, positive: 44779, positive conditional: 44779, positive unconditional: 0, negative: 1472, negative conditional: 1472, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44931, positive: 44779, positive conditional: 0, positive unconditional: 44779, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21500, positive: 21406, positive conditional: 0, positive unconditional: 21406, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44931, positive: 23373, positive conditional: 0, positive unconditional: 23373, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 21500, unknown conditional: 0, unknown unconditional: 21500] , Statistics on independence cache: Total cache size (in pairs): 21500, Positive cache size: 21406, Positive conditional cache size: 0, Positive unconditional cache size: 21406, Negative cache size: 94, Negative conditional cache size: 0, Negative unconditional cache size: 94, Independence queries for same thread: 1320, Statistics for Abstraction: - TimeoutResultAtElement [Line: 1248]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 7391 with TraceHistMax 22,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-57-6-15-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 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: 810.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 68.1s, 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: 345, 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: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 5353 NumberOfCodeBlocks, 5353 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 6803 ConstructedInterpolants, 92 QuantifiedInterpolants, 49970 SizeOfPredicates, 111 NumberOfNonLiveVariables, 3596 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2803/2932 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