/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-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1144.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 14:28:42,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 14:28:42,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 14:28:42,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 14:28:42,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 14:28:42,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 14:28:42,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 14:28:42,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 14:28:42,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 14:28:42,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 14:28:42,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 14:28:42,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 14:28:42,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 14:28:42,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 14:28:42,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 14:28:42,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 14:28:42,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 14:28:42,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 14:28:42,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 14:28:42,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 14:28:42,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 14:28:42,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 14:28:42,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 14:28:42,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 14:28:42,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 14:28:42,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 14:28:42,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 14:28:42,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 14:28:42,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 14:28:42,142 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 14:28:42,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 14:28:42,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 14:28:42,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 14:28:42,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:28:42,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 14:28:42,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 14:28:42,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 14:28:42,146 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 14:28:42,146 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 14:28:42,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 14:28:42,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 14:28:42,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 14:28:42,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 14:28:42,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 14:28:42,450 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 14:28:42,457 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 14:28:42,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1144.bpl [2022-10-24 14:28:42,458 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1144.bpl' [2022-10-24 14:28:42,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 14:28:42,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 14:28:42,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 14:28:42,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 14:28:42,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 14:28:42,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,609 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 14:28:42,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 14:28:42,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 14:28:42,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 14:28:42,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 14:28:42,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 14:28:42,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 14:28:42,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 14:28:42,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 14:28:42,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/1) ... [2022-10-24 14:28:42,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:28:42,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:28:42,716 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 14:28:42,755 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 14:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 14:28:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 14:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 14:28:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 14:28:42,770 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 14:28:42,959 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 14:28:42,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 14:28:43,935 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 14:28:43,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 14:28:43,965 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 14:28:43,969 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:43 BoogieIcfgContainer [2022-10-24 14:28:43,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 14:28:43,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 14:28:43,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 14:28:43,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 14:28:43,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:28:42" (1/2) ... [2022-10-24 14:28:43,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f07a398 and model type divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:28:43, skipping insertion in model container [2022-10-24 14:28:43,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1144.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:43" (2/2) ... [2022-10-24 14:28:43,979 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1144.bpl [2022-10-24 14:28:43,986 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 14:28:43,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 14:28:43,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 14:28:43,992 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 14:28:44,105 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 14:28:44,160 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:28:44,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:28:44,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:28:44,186 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 14:28:44,203 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 14:28:44,239 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:28:44,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:28:44,256 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;@2c47d65a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:28:44,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:28:44,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:28:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:28:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1497060604, now seen corresponding path program 1 times [2022-10-24 14:28:44,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:28:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333989927] [2022-10-24 14:28:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:28:44,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:28:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:28:45,049 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 14:28:45,050 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:28:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333989927] [2022-10-24 14:28:45,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333989927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:28:45,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:28:45,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 14:28:45,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579718725] [2022-10-24 14:28:45,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:28:45,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 14:28:45,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:28:45,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 14:28:45,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 14:28:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:45,088 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:28:45,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 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 14:28:45,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:45,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 14:28:45,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:28:45,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:28:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1028666730, now seen corresponding path program 1 times [2022-10-24 14:28:45,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:28:45,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438968864] [2022-10-24 14:28:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:28:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:28:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:28:46,096 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 14:28:46,097 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:28:46,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438968864] [2022-10-24 14:28:46,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438968864] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:28:46,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:28:46,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-10-24 14:28:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499917461] [2022-10-24 14:28:46,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:28:46,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-24 14:28:46,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:28:46,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-24 14:28:46,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-24 14:28:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:46,113 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:28:46,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 32.357142857142854) internal successors, (453), 15 states have internal predecessors, (453), 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 14:28:46,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:46,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:28:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-24 14:28:56,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 14:28:56,677 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:28:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:28:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1682125577, now seen corresponding path program 1 times [2022-10-24 14:28:56,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:28:56,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523904530] [2022-10-24 14:28:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:28:56,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:29:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:29:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 131340 backedges. 44966 proven. 60150 refuted. 0 times theorem prover too weak. 26224 trivial. 0 not checked. [2022-10-24 14:29:25,074 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:29:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523904530] [2022-10-24 14:29:25,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523904530] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:29:25,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:29:25,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-24 14:29:25,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754857130] [2022-10-24 14:29:25,077 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:29:25,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-24 14:29:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:29:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-24 14:29:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2022-10-24 14:29:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:29:25,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:29:25,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 461.7692307692308) internal successors, (6003), 13 states have internal predecessors, (6003), 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 14:29:25,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:29:25,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-24 14:29:25,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.