/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/chunk10/safe003_power.opt.line1223.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-21 01:33:00,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-21 01:33:00,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-21 01:33:00,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-21 01:33:00,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-21 01:33:00,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-21 01:33:00,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-21 01:33:00,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-21 01:33:00,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-21 01:33:00,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-21 01:33:00,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-21 01:33:00,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-21 01:33:00,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-21 01:33:00,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-21 01:33:00,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-21 01:33:00,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-21 01:33:00,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-21 01:33:00,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-21 01:33:00,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-21 01:33:00,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-21 01:33:00,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-21 01:33:00,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-21 01:33:00,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-21 01:33:00,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-21 01:33:00,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-21 01:33:00,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-21 01:33:00,698 INFO L138 SettingsManager]: * Use SBE=true [2022-10-21 01:33:00,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-21 01:33:00,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-21 01:33:00,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-21 01:33:00,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-21 01:33:00,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 01:33:00,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-21 01:33:00,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-21 01:33:00,702 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-21 01:33:00,702 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-21 01:33:00,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-21 01:33:00,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-21 01:33:00,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-21 01:33:01,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-21 01:33:01,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-21 01:33:01,033 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-21 01:33:01,035 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-21 01:33:01,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk10/safe003_power.opt.line1223.bpl [2022-10-21 01:33:01,036 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk10/safe003_power.opt.line1223.bpl' [2022-10-21 01:33:01,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-21 01:33:01,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-21 01:33:01,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-21 01:33:01,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-21 01:33:01,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-21 01:33:01,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,138 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-21 01:33:01,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-21 01:33:01,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-21 01:33:01,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-21 01:33:01,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-21 01:33:01,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-21 01:33:01,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-21 01:33:01,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-21 01:33:01,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-21 01:33:01,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/1) ... [2022-10-21 01:33:01,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 01:33:01,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 01:33:01,245 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) [2022-10-21 01:33:01,262 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 [2022-10-21 01:33:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-21 01:33:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-21 01:33:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-21 01:33:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-21 01:33:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-21 01:33:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-21 01:33:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-21 01:33:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-21 01:33:01,274 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-21 01:33:01,391 INFO L234 CfgBuilder]: Building ICFG [2022-10-21 01:33:01,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-21 01:33:01,974 INFO L275 CfgBuilder]: Performing block encoding [2022-10-21 01:33:01,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-21 01:33:01,987 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-21 01:33:01,990 INFO L202 PluginConnector]: Adding new model safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 01:33:01 BoogieIcfgContainer [2022-10-21 01:33:01,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-21 01:33:01,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-21 01:33:01,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-21 01:33:01,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-21 01:33:01,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 01:33:01" (1/2) ... [2022-10-21 01:33:01,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415d9927 and model type safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 01:33:01, skipping insertion in model container [2022-10-21 01:33:01,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe003_power.opt.line1223.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 01:33:01" (2/2) ... [2022-10-21 01:33:01,996 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.opt.line1223.bpl [2022-10-21 01:33:02,002 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-21 01:33:02,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-21 01:33:02,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-21 01:33:02,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-21 01:33:02,145 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-21 01:33:02,214 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-21 01:33:02,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 01:33:02,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 01:33:02,228 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) [2022-10-21 01:33:02,229 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 [2022-10-21 01:33:02,266 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 01:33:02,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-21 01:33:02,287 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;@6a8d7edf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 01:33:02,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 01:33:02,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 01:33:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 01:33:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1850421763, now seen corresponding path program 1 times [2022-10-21 01:33:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 01:33:02,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864511640] [2022-10-21 01:33:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 01:33:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 01:33:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 01:33:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 01:33:02,842 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 01:33:02,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864511640] [2022-10-21 01:33:02,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864511640] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 01:33:02,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 01:33:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-21 01:33:02,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077471718] [2022-10-21 01:33:02,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 01:33:02,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-21 01:33:02,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 01:33:02,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-21 01:33:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-21 01:33:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:33:02,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 01:33:02,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 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) [2022-10-21 01:33:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:35:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:35:52,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-21 01:35:52,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 01:35:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 01:35:52,493 INFO L85 PathProgramCache]: Analyzing trace with hash 180949546, now seen corresponding path program 1 times [2022-10-21 01:35:52,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 01:35:52,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754383976] [2022-10-21 01:35:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 01:35:52,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 01:35:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 01:35:52,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 01:35:52,670 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 01:35:52,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754383976] [2022-10-21 01:35:52,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754383976] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 01:35:52,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 01:35:52,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-21 01:35:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873611231] [2022-10-21 01:35:52,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 01:35:52,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-21 01:35:52,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 01:35:52,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-21 01:35:52,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-21 01:35:52,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:35:52,676 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 01:35:52,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2022-10-21 01:35:52,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:35:52,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:37:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:37:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:37:37,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-21 01:37:37,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 01:37:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 01:37:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1768935556, now seen corresponding path program 1 times [2022-10-21 01:37:37,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 01:37:37,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514927764] [2022-10-21 01:37:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 01:37:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 01:37:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 01:37:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 01:37:38,128 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 01:37:38,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514927764] [2022-10-21 01:37:38,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514927764] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 01:37:38,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 01:37:38,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-21 01:37:38,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996560097] [2022-10-21 01:37:38,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 01:37:38,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-21 01:37:38,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 01:37:38,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-21 01:37:38,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-21 01:37:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:37:38,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 01:37:38,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-10-21 01:37:38,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:37:38,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:37:38,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:39:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:39:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:39:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:39:35,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-21 01:39:35,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 01:39:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 01:39:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1222962686, now seen corresponding path program 1 times [2022-10-21 01:39:35,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 01:39:35,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793091950] [2022-10-21 01:39:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 01:39:35,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 01:39:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 01:39:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 01:39:35,990 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 01:39:35,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793091950] [2022-10-21 01:39:35,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793091950] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 01:39:35,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 01:39:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 01:39:35,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821115632] [2022-10-21 01:39:35,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 01:39:35,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 01:39:35,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 01:39:35,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 01:39:35,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-21 01:39:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:39:36,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 01:39:36,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 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) [2022-10-21 01:39:36,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 01:39:36,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:39:36,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 01:39:36,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.