java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:23:36,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:23:36,384 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:23:36,398 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:23:36,398 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:23:36,399 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:23:36,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:23:36,403 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:23:36,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:23:36,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:23:36,406 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:23:36,406 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:23:36,407 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:23:36,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:23:36,410 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:23:36,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:23:36,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:23:36,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:23:36,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:23:36,417 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:23:36,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:23:36,419 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:23:36,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 09:23:36,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 09:23:36,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 09:23:36,423 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 09:23:36,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 09:23:36,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 09:23:36,426 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 09:23:36,427 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 09:23:36,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 09:23:36,428 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 09:23:36,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 09:23:36,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 09:23:36,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 09:23:36,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 09:23:36,431 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 09:23:36,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:23:36,448 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:23:36,449 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:23:36,449 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:23:36,449 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:23:36,449 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:23:36,450 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:23:36,450 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:23:36,450 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:23:36,450 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:23:36,450 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:23:36,452 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:23:36,452 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:23:36,452 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:23:36,452 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:23:36,453 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:23:36,453 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:23:36,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:23:36,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:23:36,454 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:23:36,454 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:23:36,456 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:23:36,456 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:23:36,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:36,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:23:36,456 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:23:36,457 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:23:36,457 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:23:36,457 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:23:36,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:23:36,458 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:23:36,458 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:23:36,458 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:23:36,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:23:36,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:23:36,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:23:36,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:23:36,548 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:23:36,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c [2018-09-15 09:23:36,910 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0519b45d2/f46d426b68b9407b82613950f5bb055f/FLAG21ca74cc4 [2018-09-15 09:23:37,211 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:23:37,214 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00_true-unreach-call_false-termination.c [2018-09-15 09:23:37,234 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0519b45d2/f46d426b68b9407b82613950f5bb055f/FLAG21ca74cc4 [2018-09-15 09:23:37,259 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0519b45d2/f46d426b68b9407b82613950f5bb055f [2018-09-15 09:23:37,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:23:37,276 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:23:37,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:37,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:23:37,291 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:23:37,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:37" (1/1) ... [2018-09-15 09:23:37,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4437afef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:37, skipping insertion in model container [2018-09-15 09:23:37,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:37" (1/1) ... [2018-09-15 09:23:37,309 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:23:37,853 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:37,873 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:23:37,958 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:38,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38 WrapperNode [2018-09-15 09:23:38,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:38,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:38,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:23:38,016 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:23:38,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:38,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:23:38,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:23:38,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:23:38,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... [2018-09-15 09:23:38,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:23:38,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:23:38,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:23:38,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:23:38,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:23:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:23:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 09:23:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 09:23:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:23:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:23:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:23:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:23:42,071 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:23:42,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:42 BoogieIcfgContainer [2018-09-15 09:23:42,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:23:42,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:23:42,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:23:42,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:23:42,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:23:37" (1/3) ... [2018-09-15 09:23:42,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a9797b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:42, skipping insertion in model container [2018-09-15 09:23:42,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:38" (2/3) ... [2018-09-15 09:23:42,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a9797b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:42, skipping insertion in model container [2018-09-15 09:23:42,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:42" (3/3) ... [2018-09-15 09:23:42,088 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label00_true-unreach-call_false-termination.c [2018-09-15 09:23:42,098 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:23:42,108 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:23:42,159 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:23:42,160 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:23:42,160 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:23:42,160 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:23:42,160 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:23:42,161 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:23:42,161 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:23:42,161 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:23:42,161 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:23:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-15 09:23:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-15 09:23:42,203 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:42,204 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:42,206 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:42,211 INFO L82 PathProgramCache]: Analyzing trace with hash 215974525, now seen corresponding path program 1 times [2018-09-15 09:23:42,213 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:42,214 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-15 09:23:42,217 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-15 09:23:42,302 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:42,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:24:02,763 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:24:02,766 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-15 09:24:02,781 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:24:05,202 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-15 09:24:05,202 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:24:06,635 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:24:06,637 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:24:06,637 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 09:24:06,638 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:24:06,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 09:24:06,651 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 09:24:06,652 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-15 09:24:06,655 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-15 09:24:13,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:24:13,760 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-15 09:24:13,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-15 09:24:13,763 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2018-09-15 09:24:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:24:13,777 INFO L225 Difference]: With dead ends: 475 [2018-09-15 09:24:13,778 INFO L226 Difference]: Without dead ends: 265 [2018-09-15 09:24:13,784 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-15 09:24:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-15 09:24:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-15 09:24:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-15 09:24:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-15 09:24:13,853 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 115 [2018-09-15 09:24:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:24:13,854 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-15 09:24:13,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 09:24:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-15 09:24:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-15 09:24:13,861 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:24:13,861 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:24:13,861 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:24:13,862 INFO L82 PathProgramCache]: Analyzing trace with hash 831098042, now seen corresponding path program 1 times [2018-09-15 09:24:13,862 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:24:13,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-09-15 09:24:13,863 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-15 09:24:13,870 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:24:13,870 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:26:03,079 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:26:03,080 INFO L272 AbstractInterpreter]: Visited 118 different actions 183 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-15 09:26:03,091 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:26:12,698 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 80.61% of their original sizes. [2018-09-15 09:26:12,699 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:26:15,396 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:26:15,396 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:26:15,397 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-15 09:26:15,397 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:26:15,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-15 09:26:15,398 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-15 09:26:15,399 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-09-15 09:26:15,399 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 19 states. [2018-09-15 09:26:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:26:28,457 INFO L93 Difference]: Finished difference Result 608 states and 995 transitions. [2018-09-15 09:26:28,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 09:26:28,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 124 [2018-09-15 09:26:28,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:26:28,463 INFO L225 Difference]: With dead ends: 608 [2018-09-15 09:26:28,463 INFO L226 Difference]: Without dead ends: 410 [2018-09-15 09:26:28,467 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2018-09-15 09:26:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-15 09:26:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-15 09:26:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-15 09:26:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 542 transitions. [2018-09-15 09:26:28,505 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 542 transitions. Word has length 124 [2018-09-15 09:26:28,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:26:28,506 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 542 transitions. [2018-09-15 09:26:28,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-15 09:26:28,507 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 542 transitions. [2018-09-15 09:26:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-15 09:26:28,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:26:28,511 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:26:28,512 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:26:28,512 INFO L82 PathProgramCache]: Analyzing trace with hash -617109654, now seen corresponding path program 1 times [2018-09-15 09:26:28,512 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:26:28,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-09-15 09:26:28,513 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-15 09:26:28,519 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:26:28,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:28:07,020 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:28:07,021 INFO L272 AbstractInterpreter]: Visited 107 different actions 171 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-15 09:28:07,037 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown