/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1778.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 11:08:15,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 11:08:15,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 11:08:15,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 11:08:15,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 11:08:15,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 11:08:15,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 11:08:15,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 11:08:15,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 11:08:15,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 11:08:15,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 11:08:15,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 11:08:15,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 11:08:15,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 11:08:15,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 11:08:15,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 11:08:15,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 11:08:15,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 11:08:15,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 11:08:15,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 11:08:15,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 11:08:15,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 11:08:15,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 11:08:15,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 11:08:15,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 11:08:15,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-24 11:08:15,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 11:08:15,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 11:08:15,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 11:08:15,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 11:08:15,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 11:08:15,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 11:08:15,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 11:08:15,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 11:08:15,848 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 11:08:15,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 11:08:15,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 11:08:15,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:08:15,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 11:08:15,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 11:08:15,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 11:08:16,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 11:08:16,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 11:08:16,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 11:08:16,148 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 11:08:16,149 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 11:08:16,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1778.bpl [2022-10-24 11:08:16,150 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1778.bpl' [2022-10-24 11:08:16,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 11:08:16,253 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 11:08:16,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 11:08:16,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 11:08:16,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 11:08:16,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,293 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 11:08:16,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 11:08:16,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 11:08:16,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 11:08:16,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 11:08:16,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 11:08:16,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 11:08:16,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 11:08:16,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 11:08:16,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/1) ... [2022-10-24 11:08:16,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 11:08:16,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:08:16,437 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) [2022-10-24 11:08:16,460 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 [2022-10-24 11:08:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 11:08:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 11:08:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 11:08:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 11:08:16,479 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 11:08:16,688 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 11:08:16,689 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 11:08:17,609 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 11:08:17,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 11:08:17,625 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 11:08:17,627 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:08:17 BoogieIcfgContainer [2022-10-24 11:08:17,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 11:08:17,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 11:08:17,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 11:08:17,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 11:08:17,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 11:08:16" (1/2) ... [2022-10-24 11:08:17,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e8a1c8 and model type divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:08:17, skipping insertion in model container [2022-10-24 11:08:17,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1778.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:08:17" (2/2) ... [2022-10-24 11:08:17,632 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1778.bpl [2022-10-24 11:08:17,637 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 11:08:17,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 11:08:17,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 11:08:17,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 11:08:17,729 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 11:08:17,790 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 11:08:17,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 11:08:17,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 11:08:17,791 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) [2022-10-24 11:08:17,806 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 [2022-10-24 11:08:17,826 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 11:08:17,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 11:08:17,850 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;@1a437759, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 11:08:17,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 11:08:17,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:08:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:08:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1180515440, now seen corresponding path program 1 times [2022-10-24 11:08:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:08:17,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939714154] [2022-10-24 11:08:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:08:17,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:08:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:08:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 11:08:18,412 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:08:18,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939714154] [2022-10-24 11:08:18,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939714154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:08:18,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:08:18,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 11:08:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942456878] [2022-10-24 11:08:18,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:08:18,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 11:08:18,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:08:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 11:08:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 11:08:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:18,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:08:18,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 177.5) internal successors, (355), 2 states have internal predecessors, (355), 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) [2022-10-24 11:08:18,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:18,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 11:08:18,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:08:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:08:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1092019028, now seen corresponding path program 1 times [2022-10-24 11:08:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:08:18,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681221639] [2022-10-24 11:08:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:08:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:08:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:08:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 11:08:18,703 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:08:18,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681221639] [2022-10-24 11:08:18,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681221639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 11:08:18,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 11:08:18,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-24 11:08:18,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976307686] [2022-10-24 11:08:18,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 11:08:18,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-24 11:08:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:08:18,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-24 11:08:18,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-24 11:08:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:18,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:08:18,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2022-10-24 11:08:18,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:18,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:19,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 11:08:19,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:08:19,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:08:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1809050462, now seen corresponding path program 1 times [2022-10-24 11:08:19,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:08:19,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808361687] [2022-10-24 11:08:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:08:19,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:08:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:08:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 13250 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 13248 trivial. 0 not checked. [2022-10-24 11:08:23,051 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:08:23,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808361687] [2022-10-24 11:08:23,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808361687] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 11:08:23,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 11:08:23,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-24 11:08:23,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228650064] [2022-10-24 11:08:23,054 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 11:08:23,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-24 11:08:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:08:23,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-24 11:08:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-24 11:08:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:23,056 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:08:23,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2022-10-24 11:08:23,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:23,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:23,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 11:08:24,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 11:08:24,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:08:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:08:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1597430620, now seen corresponding path program 2 times [2022-10-24 11:08:24,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:08:24,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27257808] [2022-10-24 11:08:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:08:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:08:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:08:34,833 INFO L134 CoverageAnalysis]: Checked inductivity of 50743 backedges. 45 proven. 26902 refuted. 0 times theorem prover too weak. 23796 trivial. 0 not checked. [2022-10-24 11:08:34,833 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:08:34,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27257808] [2022-10-24 11:08:34,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27257808] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 11:08:34,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 11:08:34,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-24 11:08:34,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759637199] [2022-10-24 11:08:34,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 11:08:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 11:08:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:08:34,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 11:08:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-24 11:08:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:34,840 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:08:34,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 372.6) internal successors, (1863), 5 states have internal predecessors, (1863), 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) [2022-10-24 11:08:34,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:34,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:34,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 11:08:34,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 11:08:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 11:08:36,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 11:08:36,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:08:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:08:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1695372302, now seen corresponding path program 3 times [2022-10-24 11:08:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:08:36,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328181566] [2022-10-24 11:08:36,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:08:36,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:08:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 11:08:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 104379 backedges. 125 proven. 72303 refuted. 0 times theorem prover too weak. 31951 trivial. 0 not checked. [2022-10-24 11:08:57,012 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 11:08:57,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328181566] [2022-10-24 11:08:57,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328181566] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 11:08:57,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 11:08:57,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-24 11:08:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328217103] [2022-10-24 11:08:57,014 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 11:08:57,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-24 11:08:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 11:08:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-24 11:08:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-24 11:08:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:57,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 11:08:57,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.3333333333333) internal successors, (2618), 6 states have internal predecessors, (2618), 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) [2022-10-24 11:08:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:08:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:08:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 11:08:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 11:08:57,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:09:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 11:09:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 11:09:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 11:09:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 11:09:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-24 11:09:00,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 11:09:00,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 11:09:00,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 11:09:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash -855308948, now seen corresponding path program 4 times [2022-10-24 11:09:00,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 11:09:00,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589730478] [2022-10-24 11:09:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 11:09:00,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 11:09:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat