/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/scull.line1029.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-30 08:14:52,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-30 08:14:52,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-30 08:14:52,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-30 08:14:52,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-30 08:14:52,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-30 08:14:52,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-30 08:14:52,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-30 08:14:52,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-30 08:14:52,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-30 08:14:52,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-30 08:14:52,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-30 08:14:52,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-30 08:14:52,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-30 08:14:52,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-30 08:14:52,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-30 08:14:52,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-30 08:14:52,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-30 08:14:52,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-30 08:14:52,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-30 08:14:52,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-30 08:14:53,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-30 08:14:53,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-30 08:14:53,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-30 08:14:53,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-30 08:14:53,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-30 08:14:53,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-30 08:14:53,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-30 08:14:53,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-30 08:14:53,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-30 08:14:53,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-30 08:14:53,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-30 08:14:53,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-30 08:14:53,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-30 08:14:53,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-30 08:14:53,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-30 08:14:53,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-30 08:14:53,065 INFO L138 SettingsManager]: * Use SBE=true [2022-09-30 08:14:53,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-30 08:14:53,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-30 08:14:53,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-30 08:14:53,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-30 08:14:53,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-30 08:14:53,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 08:14:53,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-30 08:14:53,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-30 08:14:53,069 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-30 08:14:53,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-30 08:14:53,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-30 08:14:53,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-30 08:14:53,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-30 08:14:53,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-30 08:14:53,305 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-30 08:14:53,306 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-30 08:14:53,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/scull.line1029.bpl [2022-09-30 08:14:53,307 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/scull.line1029.bpl' [2022-09-30 08:14:53,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-30 08:14:53,367 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-30 08:14:53,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-30 08:14:53,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-30 08:14:53,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-30 08:14:53,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-30 08:14:53,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-30 08:14:53,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-30 08:14:53,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-30 08:14:53,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/1) ... [2022-09-30 08:14:53,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 08:14:53,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:14:53,498 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) [2022-09-30 08:14:53,521 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 [2022-09-30 08:14:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-30 08:14:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-30 08:14:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-30 08:14:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-30 08:14:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-09-30 08:14:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-09-30 08:14:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-30 08:14:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-30 08:14:53,545 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-30 08:14:53,711 INFO L234 CfgBuilder]: Building ICFG [2022-09-30 08:14:53,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-30 08:14:53,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L793: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-09-30 08:14:53,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L791: assume { :end_inline_scull_cleanup_module } true; [2022-09-30 08:14:53,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret28#1 := scull_trim_#res#1; [2022-09-30 08:14:53,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L789: assume -2147483648 <= scull_cleanup_module_#t~ret28#1 && scull_cleanup_module_#t~ret28#1 <= 2147483647; [2022-09-30 08:14:53,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L790: havoc scull_cleanup_module_#t~ret28#1; [2022-09-30 08:14:53,841 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L788: assume { :end_inline_scull_trim } true; [2022-09-30 08:14:54,370 INFO L275 CfgBuilder]: Performing block encoding [2022-09-30 08:14:54,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-30 08:14:54,398 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-30 08:14:54,401 INFO L202 PluginConnector]: Adding new model scull.line1029.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:14:54 BoogieIcfgContainer [2022-09-30 08:14:54,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-30 08:14:54,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-30 08:14:54,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-30 08:14:54,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-30 08:14:54,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:14:53" (1/2) ... [2022-09-30 08:14:54,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198d4d9b and model type scull.line1029.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:14:54, skipping insertion in model container [2022-09-30 08:14:54,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "scull.line1029.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:14:54" (2/2) ... [2022-09-30 08:14:54,411 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.line1029.bpl [2022-09-30 08:14:54,420 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-30 08:14:54,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-30 08:14:54,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-30 08:14:54,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-30 08:14:54,600 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-30 08:14:54,664 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 08:14:54,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 08:14:54,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:14:54,667 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) [2022-09-30 08:14:54,668 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 [2022-09-30 08:14:54,705 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 08:14:54,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-30 08:14:54,728 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;@496e767d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 08:14:54,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 08:14:55,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:14:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:14:55,088 INFO L85 PathProgramCache]: Analyzing trace with hash 48595052, now seen corresponding path program 1 times [2022-09-30 08:14:55,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:14:55,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904045233] [2022-09-30 08:14:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:55,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:14:55,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-30 08:14:55,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290070211] [2022-09-30 08:14:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:55,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:14:55,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:14:55,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:14:55,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-30 08:14:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:14:55,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-30 08:14:55,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:14:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:14:55,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-30 08:14:55,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:14:55,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904045233] [2022-09-30 08:14:55,701 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-30 08:14:55,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290070211] [2022-09-30 08:14:55,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290070211] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:14:55,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:14:55,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-30 08:14:55,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971819716] [2022-09-30 08:14:55,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:14:55,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-30 08:14:55,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:14:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-30 08:14:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-30 08:14:55,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:14:55,737 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:14:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2022-09-30 08:14:55,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:14:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:55,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-30 08:14:56,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-09-30 08:14:56,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:14:56,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:14:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2097451061, now seen corresponding path program 1 times [2022-09-30 08:14:56,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:14:56,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665382479] [2022-09-30 08:14:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:14:56,203 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-30 08:14:56,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061021209] [2022-09-30 08:14:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:56,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:14:56,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:14:56,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:14:56,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-30 08:14:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:14:56,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-30 08:14:56,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:14:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:14:56,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-30 08:14:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:14:56,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665382479] [2022-09-30 08:14:56,466 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-30 08:14:56,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061021209] [2022-09-30 08:14:56,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061021209] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:14:56,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:14:56,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-30 08:14:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369659093] [2022-09-30 08:14:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:14:56,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-30 08:14:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:14:56,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-30 08:14:56,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-30 08:14:56,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:14:56,473 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:14:56,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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) [2022-09-30 08:14:56,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:56,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:14:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:56,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-30 08:14:56,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:14:56,748 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:14:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:14:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash -698677929, now seen corresponding path program 1 times [2022-09-30 08:14:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:14:56,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141887797] [2022-09-30 08:14:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:14:56,798 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-30 08:14:56,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276608833] [2022-09-30 08:14:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:14:56,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:14:56,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:14:56,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:14:56,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-30 08:14:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:14:57,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-30 08:14:57,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:14:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:14:57,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-30 08:14:57,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:14:57,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141887797] [2022-09-30 08:14:57,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-30 08:14:57,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276608833] [2022-09-30 08:14:57,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276608833] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:14:57,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:14:57,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-30 08:14:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671792930] [2022-09-30 08:14:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:14:57,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-30 08:14:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:14:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-30 08:14:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-30 08:14:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:14:57,250 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:14:57,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 77.5) internal successors, (310), 5 states have internal predecessors, (310), 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) [2022-09-30 08:14:57,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:57,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:14:57,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.