/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.line1421.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 14:39:38,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 14:39:38,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 14:39:38,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 14:39:38,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 14:39:38,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 14:39:38,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 14:39:38,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 14:39:38,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 14:39:38,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 14:39:38,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 14:39:38,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 14:39:38,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 14:39:38,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 14:39:38,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 14:39:38,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 14:39:38,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 14:39:38,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 14:39:38,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 14:39:38,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 14:39:38,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 14:39:38,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 14:39:38,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 14:39:38,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 14:39:38,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 14:39:38,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 14:39:38,762 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 14:39:38,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 14:39:38,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 14:39:38,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 14:39:38,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:39:38,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 14:39:38,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 14:39:38,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 14:39:38,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 14:39:39,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 14:39:39,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 14:39:39,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 14:39:39,058 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 14:39:39,059 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 14:39:39,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1421.bpl [2022-10-24 14:39:39,060 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1421.bpl' [2022-10-24 14:39:39,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 14:39:39,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 14:39:39,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 14:39:39,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 14:39:39,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 14:39:39,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,186 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 14:39:39,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 14:39:39,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 14:39:39,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 14:39:39,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 14:39:39,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 14:39:39,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 14:39:39,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 14:39:39,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 14:39:39,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/1) ... [2022-10-24 14:39:39,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:39:39,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:39:39,325 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 14:39:39,344 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 14:39:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 14:39:39,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 14:39:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 14:39:39,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 14:39:39,364 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 14:39:39,527 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 14:39:39,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 14:39:40,337 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 14:39:40,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 14:39:40,365 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 14:39:40,368 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:40 BoogieIcfgContainer [2022-10-24 14:39:40,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 14:39:40,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 14:39:40,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 14:39:40,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 14:39:40,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:39:39" (1/2) ... [2022-10-24 14:39:40,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d57265 and model type divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:40, skipping insertion in model container [2022-10-24 14:39:40,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1421.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:40" (2/2) ... [2022-10-24 14:39:40,376 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1421.bpl [2022-10-24 14:39:40,382 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 14:39:40,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 14:39:40,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 14:39:40,388 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 14:39:40,510 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 14:39:40,563 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:39:40,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:39:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:39:40,565 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 14:39:40,592 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 14:39:40,606 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:39:40,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:39:40,622 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;@12ed7236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:39:40,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:39:40,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:39:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:39:40,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1718998645, now seen corresponding path program 1 times [2022-10-24 14:39:40,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:39:40,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500555952] [2022-10-24 14:39:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:39:40,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:39:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:39:41,411 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 14:39:41,411 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:39:41,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500555952] [2022-10-24 14:39:41,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500555952] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:39:41,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:39:41,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 14:39:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323007664] [2022-10-24 14:39:41,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:39:41,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 14:39:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:39:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 14:39:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 14:39:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:41,449 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:39:41,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 303.0) internal successors, (606), 2 states have internal predecessors, (606), 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 14:39:41,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:41,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 14:39:41,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:39:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:39:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash 808020900, now seen corresponding path program 1 times [2022-10-24 14:39:41,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:39:41,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286572739] [2022-10-24 14:39:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:39:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:39:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:39:42,149 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 14:39:42,149 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:39:42,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286572739] [2022-10-24 14:39:42,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286572739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:39:42,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:39:42,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-24 14:39:42,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478075215] [2022-10-24 14:39:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:39:42,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-24 14:39:42,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:39:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-24 14:39:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-24 14:39:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:42,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:39:42,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 61.09090909090909) internal successors, (672), 12 states have internal predecessors, (672), 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 14:39:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 14:39:43,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 14:39:43,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:39:43,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:39:43,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2033561849, now seen corresponding path program 1 times [2022-10-24 14:39:43,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:39:43,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327734901] [2022-10-24 14:39:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:39:43,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:39:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:39:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 14:39:43,658 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:39:43,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327734901] [2022-10-24 14:39:43,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327734901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:39:43,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:39:43,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-24 14:39:43,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966620212] [2022-10-24 14:39:43,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:39:43,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-24 14:39:43,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:39:43,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-24 14:39:43,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-24 14:39:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:43,662 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:39:43,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 10 states have internal predecessors, (957), 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 14:39:43,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:43,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 14:39:43,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:39:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 14:39:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-24 14:39:45,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 14:39:45,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:39:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:39:45,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1873146028, now seen corresponding path program 1 times [2022-10-24 14:39:45,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:39:45,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739616736] [2022-10-24 14:39:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:39:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:39:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:40:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 74330 backedges. 46524 proven. 20266 refuted. 0 times theorem prover too weak. 7540 trivial. 0 not checked. [2022-10-24 14:40:00,476 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:40:00,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739616736] [2022-10-24 14:40:00,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739616736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:40:00,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:40:00,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-24 14:40:00,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932064272] [2022-10-24 14:40:00,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:40:00,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-24 14:40:00,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:40:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-24 14:40:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-10-24 14:40:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:40:00,487 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:40:00,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 399.3636363636364) internal successors, (4393), 11 states have internal predecessors, (4393), 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 14:40:00,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:40:00,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 14:40:00,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-24 14:40:00,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:40:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:40:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-24 14:40:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 14:40:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-24 14:40:22,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 14:40:22,779 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:40:22,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:40:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash 317192870, now seen corresponding path program 2 times [2022-10-24 14:40:22,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:40:22,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587451439] [2022-10-24 14:40:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:40:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:40:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat