/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/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1777.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 12:55:19,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 12:55:19,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 12:55:19,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 12:55:19,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 12:55:19,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 12:55:19,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 12:55:19,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 12:55:19,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 12:55:19,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 12:55:19,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 12:55:19,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 12:55:19,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 12:55:19,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 12:55:19,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 12:55:19,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 12:55:19,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 12:55:19,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-24 12:55:19,287 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 12:55:19,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 12:55:19,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 12:55:19,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 12:55:19,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 12:55:19,290 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 12:55:19,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 12:55:19,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 12:55:19,292 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 12:55:19,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 12:55:19,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 12:55:19,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 12:55:19,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 12:55:19,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 12:55:19,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 12:55:19,296 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 12:55:19,296 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 12:55:19,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 12:55:19,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 12:55:19,296 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 12:55:19,297 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 12:55:19,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 12:55:19,297 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-24 12:55:19,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 12:55:19,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 12:55:19,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 12:55:19,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 12:55:19,637 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 12:55:19,640 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 12:55:19,641 INFO L432 ainManager$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.line1777.bpl [2022-10-24 12:55:19,643 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk25/divinefifo-bug_1w1r.line1777.bpl' [2022-10-24 12:55:19,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 12:55:19,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 12:55:19,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 12:55:19,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 12:55:19,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 12:55:19,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,815 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 12:55:19,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 12:55:19,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 12:55:19,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 12:55:19,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 12:55:19,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 12:55:19,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 12:55:19,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 12:55:19,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 12:55:19,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/1) ... [2022-10-24 12:55:19,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 12:55:19,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 12:55:19,935 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 12:55:19,943 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 12:55:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 12:55:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 12:55:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 12:55:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 12:55:19,982 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 12:55:20,192 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 12:55:20,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 12:55:21,287 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 12:55:21,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 12:55:21,303 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 12:55:21,305 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:55:21 BoogieIcfgContainer [2022-10-24 12:55:21,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 12:55:21,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 12:55:21,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 12:55:21,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 12:55:21,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 12:55:19" (1/2) ... [2022-10-24 12:55:21,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c66f899 and model type divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:55:21, skipping insertion in model container [2022-10-24 12:55:21,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1777.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:55:21" (2/2) ... [2022-10-24 12:55:21,312 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1777.bpl [2022-10-24 12:55:21,318 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 12:55:21,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 12:55:21,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 12:55:21,325 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 12:55:21,431 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 12:55:21,508 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 12:55:21,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 12:55:21,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 12:55:21,515 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 12:55:21,522 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 12:55:21,542 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 12:55:21,557 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-24 12:55:21,557 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-24 12:55:21,557 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-24 12:55:21,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 12:55:21,570 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;@3b0a597a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 12:55:21,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 12:55:23,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:55:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:55:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 482721890, now seen corresponding path program 1 times [2022-10-24 12:55:23,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:55:23,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797370881] [2022-10-24 12:55:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:55:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:55:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 12:55:23,731 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 12:55:23,732 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 12:55:23,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797370881] [2022-10-24 12:55:23,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797370881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 12:55:23,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 12:55:23,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 12:55:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138836952] [2022-10-24 12:55:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 12:55:23,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 12:55:23,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 12:55:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 12:55:23,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 12:55:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:23,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 12:55:23,781 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 12:55:23,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:24,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 12:55:24,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:55:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:55:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1665108144, now seen corresponding path program 1 times [2022-10-24 12:55:24,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:55:24,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022002081] [2022-10-24 12:55:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:55:24,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:55:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 12:55:24,750 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 12:55:24,751 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 12:55:24,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022002081] [2022-10-24 12:55:24,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022002081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 12:55:24,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 12:55:24,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-24 12:55:24,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614788411] [2022-10-24 12:55:24,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 12:55:24,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-24 12:55:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 12:55:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-24 12:55:24,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-24 12:55:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:24,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 12:55:24,759 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 12:55:24,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:24,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:30,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:30,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:55:30,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 12:55:30,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:55:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:55:30,379 INFO L85 PathProgramCache]: Analyzing trace with hash 955520890, now seen corresponding path program 1 times [2022-10-24 12:55:30,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:55:30,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760807983] [2022-10-24 12:55:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:55:30,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:55:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 12:55:34,649 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 12:55:34,649 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 12:55:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760807983] [2022-10-24 12:55:34,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760807983] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 12:55:34,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 12:55:34,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-24 12:55:34,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136184722] [2022-10-24 12:55:34,652 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 12:55:34,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-24 12:55:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 12:55:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-24 12:55:34,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-24 12:55:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:34,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 12:55:34,659 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 12:55:34,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:34,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:55:34,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:55:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 12:55:40,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 12:55:40,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:55:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:55:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1748544636, now seen corresponding path program 2 times [2022-10-24 12:55:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:55:40,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75284957] [2022-10-24 12:55:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:55:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:55:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 12:55:51,488 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 12:55:51,489 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 12:55:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75284957] [2022-10-24 12:55:51,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75284957] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 12:55:51,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 12:55:51,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-24 12:55:51,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359330947] [2022-10-24 12:55:51,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 12:55:51,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 12:55:51,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 12:55:51,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 12:55:51,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-24 12:55:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:51,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 12:55:51,509 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 12:55:51,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:51,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:55:51,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 12:55:51,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:58,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:55:58,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:55:58,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 12:55:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 12:55:58,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 12:55:58,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:55:58,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:55:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash -15816922, now seen corresponding path program 3 times [2022-10-24 12:55:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:55:58,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185462573] [2022-10-24 12:55:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:55:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:56:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 12:56:22,413 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 12:56:22,413 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 12:56:22,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185462573] [2022-10-24 12:56:22,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185462573] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 12:56:22,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 12:56:22,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-24 12:56:22,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136900402] [2022-10-24 12:56:22,416 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 12:56:22,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-24 12:56:22,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 12:56:22,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-24 12:56:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-24 12:56:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:56:22,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 12:56:22,441 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 12:56:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:56:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:56:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 12:56:22,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 12:56:22,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:56:38,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 12:56:38,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 12:56:38,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 12:56:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 12:56:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-24 12:56:38,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 12:56:38,484 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 12:56:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 12:56:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1198640440, now seen corresponding path program 4 times [2022-10-24 12:56:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 12:56:38,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258052270] [2022-10-24 12:56:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 12:56:38,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 12:56:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat