/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.line1613.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 14:52:46,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 14:52:46,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 14:52:46,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 14:52:46,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 14:52:46,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 14:52:46,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 14:52:46,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 14:52:46,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 14:52:46,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 14:52:46,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 14:52:46,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 14:52:46,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 14:52:46,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 14:52:46,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 14:52:46,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 14:52:46,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 14:52:46,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 14:52:46,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 14:52:46,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 14:52:46,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 14:52:46,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 14:52:46,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 14:52:46,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 14:52:46,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 14:52:46,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 14:52:46,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 14:52:46,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 14:52:46,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 14:52:46,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-10-03 14:52:46,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 14:52:46,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 14:52:46,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 14:52:46,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 14:52:46,840 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 14:52:46,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 14:52:46,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 14:52:46,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 14:52:46,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 14:52:46,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 14:52:46,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 14:52:46,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 14:52:46,843 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 14:52:46,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 14:52:46,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 14:52:46,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 14:52:46,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 14:52:46,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 14:52:46,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 14:52:46,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 14:52:46,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 14:52:46,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 14:52:46,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 14:52:46,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 14:52:46,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 14:52:46,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 14:52:46,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 14:52:46,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 14:52:46,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 14:52:46,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:52:46,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 14:52:46,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 14:52:46,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 14:52:46,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 14:52:46,848 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 14:52:46,848 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 14:52:46,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 14:52:46,848 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 14:52:47,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 14:52:47,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 14:52:47,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 14:52:47,100 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 14:52:47,101 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 14:52:47,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1613.bpl [2022-10-03 14:52:47,103 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1613.bpl' [2022-10-03 14:52:47,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 14:52:47,186 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 14:52:47,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 14:52:47,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 14:52:47,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 14:52:47,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 14:52:47,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 14:52:47,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 14:52:47,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 14:52:47,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/1) ... [2022-10-03 14:52:47,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:52:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:52:47,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-03 14:52:47,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-03 14:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 14:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 14:52:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 14:52:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 14:52:47,431 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 14:52:47,570 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 14:52:47,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 14:52:48,664 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 14:52:48,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 14:52:48,691 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 14:52:48,694 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:52:48 BoogieIcfgContainer [2022-10-03 14:52:48,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 14:52:48,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 14:52:48,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 14:52:48,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 14:52:48,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:52:47" (1/2) ... [2022-10-03 14:52:48,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e34275 and model type divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:52:48, skipping insertion in model container [2022-10-03 14:52:48,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:52:48" (2/2) ... [2022-10-03 14:52:48,709 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1613.bpl [2022-10-03 14:52:48,716 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 14:52:48,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 14:52:48,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 14:52:48,726 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 14:52:48,873 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 14:52:48,938 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:52:48,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:52:48,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:52:48,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:52:48,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 14:52:48,999 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:52:49,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 14:52:49,025 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;@2b7e4e0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:52:49,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:52:49,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:52:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:52:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1169525397, now seen corresponding path program 1 times [2022-10-03 14:52:49,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:52:49,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369294688] [2022-10-03 14:52:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:52:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:52:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:52:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:52:50,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:52:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369294688] [2022-10-03 14:52:50,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369294688] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:52:50,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:52:50,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 14:52:50,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315196891] [2022-10-03 14:52:50,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:52:50,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 14:52:50,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:52:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 14:52:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 14:52:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:50,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:52:50,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 374.5) internal successors, (749), 2 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:52:50,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:50,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 14:52:50,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:52:50,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:52:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash -503753295, now seen corresponding path program 1 times [2022-10-03 14:52:50,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:52:50,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485401272] [2022-10-03 14:52:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:52:50,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:52:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:52:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:52:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:52:51,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485401272] [2022-10-03 14:52:51,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485401272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:52:51,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:52:51,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-03 14:52:51,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151265696] [2022-10-03 14:52:51,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:52:51,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-03 14:52:51,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:52:51,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-03 14:52:51,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-10-03 14:52:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:51,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:52:51,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 62.53846153846154) internal successors, (813), 14 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:52:51,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:51,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:52:53,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 14:52:53,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:52:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:52:53,181 INFO L85 PathProgramCache]: Analyzing trace with hash -263921835, now seen corresponding path program 1 times [2022-10-03 14:52:53,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:52:53,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965927165] [2022-10-03 14:52:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:52:53,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:52:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:52:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-10-03 14:52:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:52:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965927165] [2022-10-03 14:52:57,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965927165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:52:57,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:52:57,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-10-03 14:52:57,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415284159] [2022-10-03 14:52:57,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:52:57,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-10-03 14:52:57,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:52:57,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-10-03 14:52:57,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=4608, Unknown=0, NotChecked=0, Total=4830 [2022-10-03 14:52:57,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:57,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:52:57,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 14.028571428571428) internal successors, (982), 70 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:52:57,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:52:57,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:52:57,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:53:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:53:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:53:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-03 14:53:21,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-03 14:53:21,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:53:21,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:53:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 312273957, now seen corresponding path program 2 times [2022-10-03 14:53:21,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:53:21,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381451951] [2022-10-03 14:53:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:53:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:53:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:53:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16910 backedges. 4153 proven. 3251 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-10-03 14:53:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:53:30,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381451951] [2022-10-03 14:53:30,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381451951] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:53:30,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874309640] [2022-10-03 14:53:30,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 14:53:30,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:53:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:53:30,286 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) [2022-10-03 14:53:30,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 14:53:31,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 14:53:31,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 14:53:31,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 2052 conjuncts, 241 conjunts are in the unsatisfiable core [2022-10-03 14:53:31,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:53:31,454 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 [2022-10-03 14:53:32,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-03 14:53:32,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:53:32,675 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 [2022-10-03 14:53:32,681 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 [2022-10-03 14:53:36,533 INFO L356 Elim1Store]: treesize reduction 22, result has 40.5 percent of original size [2022-10-03 14:53:36,535 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 22 treesize of output 24 [2022-10-03 14:53:37,203 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-03 14:53:37,204 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 65 treesize of output 58 [2022-10-03 14:53:37,216 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 14:53:37,217 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 88 treesize of output 80 [2022-10-03 14:53:41,328 INFO L356 Elim1Store]: treesize reduction 214, result has 26.7 percent of original size [2022-10-03 14:53:41,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 134 treesize of output 141 [2022-10-03 14:53:41,372 INFO L356 Elim1Store]: treesize reduction 114, result has 23.0 percent of original size [2022-10-03 14:53:41,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 114 treesize of output 111 [2022-10-03 14:53:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 16910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16910 trivial. 0 not checked. [2022-10-03 14:53:42,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 14:53:42,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874309640] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:53:42,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 14:53:42,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [64] total 138 [2022-10-03 14:53:42,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199844672] [2022-10-03 14:53:42,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:53:42,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-10-03 14:53:42,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:53:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-10-03 14:53:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=18463, Unknown=0, NotChecked=0, Total=18906 [2022-10-03 14:53:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:53:42,104 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:53:42,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 12.58974358974359) internal successors, (982), 78 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:53:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:53:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:53:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-10-03 14:53:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:54:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-10-03 14:54:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-03 14:54:15,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-03 14:54:15,224 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,SelfDestructingSolverStorable3 [2022-10-03 14:54:15,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:54:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:54:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2032683147, now seen corresponding path program 3 times [2022-10-03 14:54:15,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:54:15,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22133461] [2022-10-03 14:54:15,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:54:15,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:54:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:54:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 802 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:54:23,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:54:23,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22133461] [2022-10-03 14:54:23,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22133461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:54:23,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633946037] [2022-10-03 14:54:23,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-03 14:54:23,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:54:23,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:54:23,928 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) [2022-10-03 14:54:23,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-03 14:54:24,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-10-03 14:54:24,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 14:54:24,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 216 conjunts are in the unsatisfiable core [2022-10-03 14:54:24,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:54:25,827 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 [2022-10-03 14:54:25,833 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 [2022-10-03 14:54:30,176 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 14:54:30,176 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 [2022-10-03 14:54:31,178 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 14:54:31,178 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 74 treesize of output 70 [2022-10-03 14:54:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:54:31,186 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-03 14:54:31,186 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 65 treesize of output 58 [2022-10-03 14:54:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2022-10-03 14:54:35,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 14:54:35,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633946037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:54:35,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 14:54:35,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [111] total 173 [2022-10-03 14:54:35,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576250345] [2022-10-03 14:54:35,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:54:35,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-03 14:54:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:54:35,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-03 14:54:35,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=657, Invalid=29099, Unknown=0, NotChecked=0, Total=29756 [2022-10-03 14:54:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:35,064 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:54:35,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 15.34375) internal successors, (982), 64 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:54:35,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:35,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:54:35,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-10-03 14:54:35,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-10-03 14:54:35,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:54:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-03 14:54:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-10-03 14:54:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-03 14:54:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-10-03 14:54:44,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-03 14:54:44,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:54:44,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:54:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:54:44,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1359737719, now seen corresponding path program 1 times [2022-10-03 14:54:44,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:54:44,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398736836] [2022-10-03 14:54:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:54:44,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:54:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:55:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 202 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:55:19,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:55:19,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398736836] [2022-10-03 14:55:19,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398736836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:55:19,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813565816] [2022-10-03 14:55:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:55:19,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:55:19,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:55:19,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:55:19,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 14:55:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:55:20,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 4116 conjuncts, 308 conjunts are in the unsatisfiable core [2022-10-03 14:55:20,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:55:20,888 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 [2022-10-03 14:55:23,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:55:23,124 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 [2022-10-03 14:55:24,484 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 14:55:24,485 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 [2022-10-03 14:55:36,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:55:36,336 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-10-03 14:55:36,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 24 treesize of output 31 [2022-10-03 14:55:51,279 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 [2022-10-03 14:55:51,300 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 [2022-10-03 14:55:52,795 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 [2022-10-03 14:55:56,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-03 14:55:59,007 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 14:55:59,007 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 29 treesize of output 34 [2022-10-03 14:55:59,010 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 20 treesize of output 14 [2022-10-03 14:56:02,714 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 43 treesize of output 38 [2022-10-03 14:56:04,145 INFO L356 Elim1Store]: treesize reduction 28, result has 58.2 percent of original size [2022-10-03 14:56:04,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 34 treesize of output 63 [2022-10-03 14:56:07,926 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 39 treesize of output 38 [2022-10-03 14:56:08,321 INFO L356 Elim1Store]: treesize reduction 28, result has 58.2 percent of original size [2022-10-03 14:56:08,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 34 treesize of output 63 [2022-10-03 14:56:13,986 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 0 case distinctions, treesize of input 46 treesize of output 30 [2022-10-03 14:56:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 225 proven. 522 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-03 14:56:17,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:56:20,183 WARN L833 $PredicateComparison]: unable to prove that (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (not (= |c_#length| (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| (select |c_#length| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base|)))))) is different from false Received shutdown request... [2022-10-03 15:06:27,461 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 [2022-10-03 15:06:27,461 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 [2022-10-03 15:06:27,461 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 15:06:28,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-03 15:06:28,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-03 15:06:28,661 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-10-03 15:06:28,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-10-03 15:06:28,684 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 15:06:28,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-03 15:06:28,685 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1625 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2022-10-03 15:06:28,688 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-10-03 15:06:28,689 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/2) [2022-10-03 15:06:28,691 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-03 15:06:28,691 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-03 15:06:28,694 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 03:06:28 BasicIcfg [2022-10-03 15:06:28,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-03 15:06:28,694 INFO L158 Benchmark]: Toolchain (without parser) took 821507.89ms. Allocated memory was 175.1MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 129.1MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-10-03 15:06:28,694 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.35ms. Allocated memory is still 175.1MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-03 15:06:28,695 INFO L158 Benchmark]: Boogie Preprocessor took 138.79ms. Allocated memory is still 175.1MB. Free memory was 129.1MB in the beginning and 122.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-10-03 15:06:28,695 INFO L158 Benchmark]: RCFGBuilder took 1367.48ms. Allocated memory was 175.1MB in the beginning and 217.1MB in the end (delta: 41.9MB). Free memory was 122.0MB in the beginning and 163.7MB in the end (delta: -41.6MB). Peak memory consumption was 27.5MB. Max. memory is 8.0GB. [2022-10-03 15:06:28,695 INFO L158 Benchmark]: TraceAbstraction took 819992.51ms. Allocated memory was 217.1MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 162.6MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-10-03 15:06:28,696 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 0.35ms. Allocated memory is still 175.1MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 138.79ms. Allocated memory is still 175.1MB. Free memory was 129.1MB in the beginning and 122.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1367.48ms. Allocated memory was 175.1MB in the beginning and 217.1MB in the end (delta: 41.9MB). Free memory was 122.0MB in the beginning and 163.7MB in the end (delta: -41.6MB). Peak memory consumption was 27.5MB. Max. memory is 8.0GB. * TraceAbstraction took 819992.51ms. Allocated memory was 217.1MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 162.6MB in the beginning and 3.4GB in the end (delta: -3.3GB). 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: 551, positive: 532, positive conditional: 532, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 532, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 19, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1736, positive: 1686, positive conditional: 1686, positive unconditional: 0, negative: 50, negative conditional: 50, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 1686, Positive cache size: 1686, Positive conditional cache size: 0, Positive unconditional cache size: 1686, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 69, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4424, positive: 4297, positive conditional: 4297, positive unconditional: 0, negative: 127, negative conditional: 127, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 4200, Positive cache size: 4196, Positive conditional cache size: 0, Positive unconditional cache size: 4196, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Independence queries for same thread: 192, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 46159, positive: 44694, positive conditional: 44694, positive unconditional: 0, negative: 1465, negative conditional: 1465, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 39910, Positive cache size: 39807, Positive conditional cache size: 0, Positive unconditional cache size: 39807, Negative cache size: 103, Negative conditional cache size: 0, Negative unconditional cache size: 103, Independence queries for same thread: 1546, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 9162, positive: 8885, positive conditional: 8885, positive unconditional: 0, negative: 277, negative conditional: 277, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 43029, Positive cache size: 42924, Positive conditional cache size: 0, Positive unconditional cache size: 42924, Negative cache size: 105, Negative conditional cache size: 0, Negative unconditional cache size: 105, Independence queries for same thread: 1814, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4609, positive: 4471, positive conditional: 4471, positive unconditional: 0, negative: 138, negative conditional: 138, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 66641, positive: 64565, positive conditional: 64565, positive unconditional: 0, negative: 2076, negative conditional: 2076, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64695, positive: 64565, positive conditional: 0, positive unconditional: 64565, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43506, positive: 43399, positive conditional: 0, positive unconditional: 43399, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64695, positive: 21166, positive conditional: 0, positive unconditional: 21166, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 43506, unknown conditional: 0, unknown unconditional: 43506] , Statistics on independence cache: Total cache size (in pairs): 43506, Positive cache size: 43399, Positive conditional cache size: 0, Positive unconditional cache size: 43399, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Independence queries for same thread: 1946, Statistics for Abstraction: - TimeoutResultAtElement [Line: 1613]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1625 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - 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: 819.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 69.0s, 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: 336, 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: 0.6s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 41.2s InterpolantComputationTime, 14956 NumberOfCodeBlocks, 10319 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 14949 ConstructedInterpolants, 105 QuantifiedInterpolants, 129446 SizeOfPredicates, 227 NumberOfNonLiveVariables, 3101 ConjunctsInSsa, 457 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 33469/37066 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