/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/chunk08/safe012_power.opt.line1156.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-20 20:15:18,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-20 20:15:18,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-20 20:15:18,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-20 20:15:18,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-20 20:15:18,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-20 20:15:18,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-20 20:15:18,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-20 20:15:18,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-20 20:15:18,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-20 20:15:18,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-20 20:15:18,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-20 20:15:18,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-20 20:15:18,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-20 20:15:18,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-20 20:15:18,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-20 20:15:18,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-20 20:15:18,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-20 20:15:18,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-20 20:15:18,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-20 20:15:18,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-20 20:15:18,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-20 20:15:18,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-20 20:15:18,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-20 20:15:18,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-20 20:15:18,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-20 20:15:18,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-20 20:15:18,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-20 20:15:18,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-20 20:15:18,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-20 20:15:18,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-20 20:15:18,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-20 20:15:18,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-20 20:15:18,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-20 20:15:18,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-20 20:15:18,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-20 20:15:18,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-20 20:15:18,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-20 20:15:18,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-20 20:15:18,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-20 20:15:18,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-20 20:15:18,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-20 20:15:18,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-20 20:15:18,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-20 20:15:18,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-20 20:15:18,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-20 20:15:18,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-20 20:15:18,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-20 20:15:18,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-20 20:15:18,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-20 20:15:18,315 INFO L138 SettingsManager]: * Use SBE=true [2022-10-20 20:15:18,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-20 20:15:18,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-20 20:15:18,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-20 20:15:18,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-20 20:15:18,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-20 20:15:18,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-20 20:15:18,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 20:15:18,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-20 20:15:18,318 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-20 20:15:18,319 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-20 20:15:18,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-20 20:15:18,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-20 20:15:18,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-20 20:15:18,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-20 20:15:18,662 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-20 20:15:18,665 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-20 20:15:18,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk08/safe012_power.opt.line1156.bpl [2022-10-20 20:15:18,667 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk08/safe012_power.opt.line1156.bpl' [2022-10-20 20:15:18,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-20 20:15:18,777 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-20 20:15:18,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-20 20:15:18,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-20 20:15:18,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-20 20:15:18,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,853 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-20 20:15:18,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-20 20:15:18,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-20 20:15:18,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-20 20:15:18,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-20 20:15:18,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-20 20:15:18,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-20 20:15:18,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-20 20:15:18,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-20 20:15:18,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/1) ... [2022-10-20 20:15:18,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 20:15:19,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 20:15:19,013 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) [2022-10-20 20:15:19,023 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 [2022-10-20 20:15:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-20 20:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-20 20:15:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-20 20:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-20 20:15:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-20 20:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-20 20:15:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-20 20:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-20 20:15:19,054 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-20 20:15:19,304 INFO L234 CfgBuilder]: Building ICFG [2022-10-20 20:15:19,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-20 20:15:19,917 INFO L275 CfgBuilder]: Performing block encoding [2022-10-20 20:15:19,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-20 20:15:19,947 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-20 20:15:19,949 INFO L202 PluginConnector]: Adding new model safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:15:19 BoogieIcfgContainer [2022-10-20 20:15:19,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-20 20:15:19,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-20 20:15:19,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-20 20:15:19,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-20 20:15:19,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 08:15:18" (1/2) ... [2022-10-20 20:15:19,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d624b20 and model type safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 08:15:19, skipping insertion in model container [2022-10-20 20:15:19,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe012_power.opt.line1156.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:15:19" (2/2) ... [2022-10-20 20:15:19,954 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_power.opt.line1156.bpl [2022-10-20 20:15:19,974 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-20 20:15:19,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-20 20:15:19,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-20 20:15:19,980 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-20 20:15:20,100 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-20 20:15:20,178 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-20 20:15:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 20:15:20,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 20:15:20,191 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) [2022-10-20 20:15:20,198 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 [2022-10-20 20:15:20,214 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 20:15:20,236 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-20 20:15:20,236 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-20 20:15:20,236 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-20 20:15:20,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-20 20:15:20,257 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;@62bd0399, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 20:15:20,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 20:15:20,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 20:15:20,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 20:15:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1567519667, now seen corresponding path program 1 times [2022-10-20 20:15:20,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 20:15:20,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428734272] [2022-10-20 20:15:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 20:15:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 20:15:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 20:15:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 20:15:20,907 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 20:15:20,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428734272] [2022-10-20 20:15:20,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428734272] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 20:15:20,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 20:15:20,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-20 20:15:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649148447] [2022-10-20 20:15:20,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 20:15:20,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-20 20:15:20,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 20:15:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-20 20:15:20,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-20 20:15:20,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:15:20,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 20:15:20,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 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) [2022-10-20 20:15:20,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:16:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:16:27,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-20 20:16:27,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 20:16:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 20:16:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash 876936658, now seen corresponding path program 1 times [2022-10-20 20:16:27,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 20:16:27,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068809220] [2022-10-20 20:16:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 20:16:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 20:16:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 20:16:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 20:16:27,610 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 20:16:27,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068809220] [2022-10-20 20:16:27,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068809220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 20:16:27,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 20:16:27,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 20:16:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834271302] [2022-10-20 20:16:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 20:16:27,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 20:16:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 20:16:27,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 20:16:27,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 20:16:27,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:16:27,615 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 20:16:27,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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) [2022-10-20 20:16:27,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:16:27,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:17:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:17:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:17:13,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-20 20:17:13,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 20:17:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 20:17:13,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1896369966, now seen corresponding path program 1 times [2022-10-20 20:17:13,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 20:17:13,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855778587] [2022-10-20 20:17:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 20:17:13,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 20:17:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 20:17:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 20:17:13,629 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 20:17:13,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855778587] [2022-10-20 20:17:13,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855778587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 20:17:13,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 20:17:13,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 20:17:13,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223004714] [2022-10-20 20:17:13,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 20:17:13,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 20:17:13,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 20:17:13,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 20:17:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 20:17:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:17:13,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 20:17:13,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-10-20 20:17:13,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:17:13,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:17:13,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:18:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:18:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:18:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:18:01,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-20 20:18:01,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 20:18:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 20:18:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1824748976, now seen corresponding path program 1 times [2022-10-20 20:18:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 20:18:01,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541850463] [2022-10-20 20:18:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 20:18:01,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 20:18:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 20:18:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 20:18:01,331 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 20:18:01,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541850463] [2022-10-20 20:18:01,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541850463] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 20:18:01,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 20:18:01,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-20 20:18:01,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040541559] [2022-10-20 20:18:01,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 20:18:01,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-20 20:18:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 20:18:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-20 20:18:01,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-20 20:18:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:18:01,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 20:18:01,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2022-10-20 20:18:01,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 20:18:01,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:18:01,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 20:18:01,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.