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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:52,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:52,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:52,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:52,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:52,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:52,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:52,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:52,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:52,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:52,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:52,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:52,415 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:52,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:52,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:52,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:52,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:52,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:52,439 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:52,440 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:52,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:52,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:52,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:52,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:52,451 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:52,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:52,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:52,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:52,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:52,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:52,461 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:52,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 08:01:52,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 08:01:52,462 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 08:01:52,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 08:01:52,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 08:01:52,467 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:52,497 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:52,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:52,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:52,499 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:52,499 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:52,499 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:52,500 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:52,500 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:52,500 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:52,500 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:52,501 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:52,501 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:52,501 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:52,503 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:52,503 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:52,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:52,505 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:52,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:52,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:52,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:52,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:52,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:52,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:52,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:52,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:52,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:52,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:52,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:52,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:52,509 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:52,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:52,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:52,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:52,510 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:52,510 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:52,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:52,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:52,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:52,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:52,607 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:52,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02_true-unreach-call_false-termination.c [2018-09-19 08:01:53,011 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac235eb7e/f0f31407eb184299acdb40dbcc9c8eb9/FLAGe08211090 [2018-09-19 08:01:53,298 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:53,299 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02_true-unreach-call_false-termination.c [2018-09-19 08:01:53,312 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac235eb7e/f0f31407eb184299acdb40dbcc9c8eb9/FLAGe08211090 [2018-09-19 08:01:53,328 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac235eb7e/f0f31407eb184299acdb40dbcc9c8eb9 [2018-09-19 08:01:53,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:53,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:53,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:53,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:53,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:53,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:53" (1/1) ... [2018-09-19 08:01:53,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339502a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:53, skipping insertion in model container [2018-09-19 08:01:53,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:53" (1/1) ... [2018-09-19 08:01:53,371 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:53,894 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:53,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:54,057 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:54,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54 WrapperNode [2018-09-19 08:01:54,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:54,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:54,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:54,095 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:54,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:54,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:54,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:54,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:54,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (1/1) ... [2018-09-19 08:01:54,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:54,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:54,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:54,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:54,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (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 [2018-09-19 08:01:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:01:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:01:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:57,743 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:57,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:57 BoogieIcfgContainer [2018-09-19 08:01:57,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:57,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:57,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:57,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:57,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:53" (1/3) ... [2018-09-19 08:01:57,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9a1c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:57, skipping insertion in model container [2018-09-19 08:01:57,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:54" (2/3) ... [2018-09-19 08:01:57,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9a1c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:57, skipping insertion in model container [2018-09-19 08:01:57,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:57" (3/3) ... [2018-09-19 08:01:57,755 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label02_true-unreach-call_false-termination.c [2018-09-19 08:01:57,766 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:57,777 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:57,832 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:57,833 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:57,833 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:57,833 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:57,833 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:57,833 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:57,834 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:57,834 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:57,834 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-19 08:01:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-09-19 08:01:57,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:57,879 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] [2018-09-19 08:01:57,880 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:57,885 INFO L82 PathProgramCache]: Analyzing trace with hash -388203563, now seen corresponding path program 1 times [2018-09-19 08:01:57,888 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:57,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 98 with the following transitions: [2018-09-19 08:01:57,893 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], [413], [415], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-19 08:01:57,969 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:57,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:02:16,299 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:02:16,302 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-19 08:02:16,330 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:02:18,586 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-19 08:02:18,587 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:02:19,907 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:02:19,909 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:02:19,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 08:02:19,909 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:02:19,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 08:02:19,922 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 08:02:19,922 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:02:19,925 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-19 08:02:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:02:26,587 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-19 08:02:26,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 08:02:26,589 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2018-09-19 08:02:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:02:26,606 INFO L225 Difference]: With dead ends: 475 [2018-09-19 08:02:26,607 INFO L226 Difference]: Without dead ends: 265 [2018-09-19 08:02:26,614 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-19 08:02:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-19 08:02:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-19 08:02:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-19 08:02:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-19 08:02:26,686 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 97 [2018-09-19 08:02:26,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:02:26,687 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-19 08:02:26,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 08:02:26,688 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-19 08:02:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-19 08:02:26,693 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:02:26,694 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] [2018-09-19 08:02:26,694 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:02:26,695 INFO L82 PathProgramCache]: Analyzing trace with hash -115700910, now seen corresponding path program 1 times [2018-09-19 08:02:26,695 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:02:26,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-09-19 08:02:26,696 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], [413], [415], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:02:26,704 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:02:26,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:03:09,933 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:03:09,933 INFO L272 AbstractInterpreter]: Visited 100 different actions 165 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:03:09,972 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:03:12,085 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 80.26% of their original sizes. [2018-09-19 08:03:12,086 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:03:13,214 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:03:13,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:03:13,215 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:03:13,215 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:03:13,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:03:13,216 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:03:13,217 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:03:13,217 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 14 states. [2018-09-19 08:03:20,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:03:20,491 INFO L93 Difference]: Finished difference Result 608 states and 996 transitions. [2018-09-19 08:03:20,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:03:20,493 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 106 [2018-09-19 08:03:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:03:20,498 INFO L225 Difference]: With dead ends: 608 [2018-09-19 08:03:20,498 INFO L226 Difference]: Without dead ends: 410 [2018-09-19 08:03:20,502 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:03:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-19 08:03:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-19 08:03:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-19 08:03:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 549 transitions. [2018-09-19 08:03:20,538 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 549 transitions. Word has length 106 [2018-09-19 08:03:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:03:20,539 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 549 transitions. [2018-09-19 08:03:20,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:03:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 549 transitions. [2018-09-19 08:03:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-09-19 08:03:20,543 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:03:20,543 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] [2018-09-19 08:03:20,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:03:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash 280162818, now seen corresponding path program 1 times [2018-09-19 08:03:20,544 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:03:20,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-09-19 08:03:20,545 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], [413], [415], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:03:20,550 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:03:20,550 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:04:03,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:04:03,731 INFO L272 AbstractInterpreter]: Visited 100 different actions 164 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:04:03,741 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:04:05,976 INFO L232 lantSequenceWeakener]: Weakened 107 states. On average, predicates are now at 80.25% of their original sizes. [2018-09-19 08:04:05,976 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:04:07,366 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:04:07,366 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:04:07,366 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 08:04:07,366 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:04:07,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 08:04:07,367 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 08:04:07,368 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:04:07,368 INFO L87 Difference]: Start difference. First operand 403 states and 549 transitions. Second operand 12 states. [2018-09-19 08:04:18,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:04:18,236 INFO L93 Difference]: Finished difference Result 788 states and 1227 transitions. [2018-09-19 08:04:18,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 08:04:18,238 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2018-09-19 08:04:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:04:18,243 INFO L225 Difference]: With dead ends: 788 [2018-09-19 08:04:18,243 INFO L226 Difference]: Without dead ends: 590 [2018-09-19 08:04:18,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2018-09-19 08:04:18,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2018-09-19 08:04:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 585. [2018-09-19 08:04:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2018-09-19 08:04:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 745 transitions. [2018-09-19 08:04:18,284 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 745 transitions. Word has length 109 [2018-09-19 08:04:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:04:18,285 INFO L480 AbstractCegarLoop]: Abstraction has 585 states and 745 transitions. [2018-09-19 08:04:18,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 08:04:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 745 transitions. [2018-09-19 08:04:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-19 08:04:18,288 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:04:18,289 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-09-19 08:04:18,289 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:04:18,289 INFO L82 PathProgramCache]: Analyzing trace with hash 219264965, now seen corresponding path program 1 times [2018-09-19 08:04:18,290 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:04:18,290 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-09-19 08:04:18,290 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [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], [413], [415], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:04:18,295 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:04:18,295 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:05:27,193 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:05:27,194 INFO L272 AbstractInterpreter]: Visited 101 different actions 269 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-09-19 08:05:27,202 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:05:29,449 INFO L232 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 80.28% of their original sizes. [2018-09-19 08:05:29,450 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:05:29,856 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:05:29,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:05:29,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:05:29,857 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:05:29,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:05:29,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:05:29,858 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:05:29,859 INFO L87 Difference]: Start difference. First operand 585 states and 745 transitions. Second operand 10 states. [2018-09-19 08:05:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:05:37,404 INFO L93 Difference]: Finished difference Result 1157 states and 1589 transitions. [2018-09-19 08:05:37,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 08:05:37,406 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2018-09-19 08:05:37,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:05:37,413 INFO L225 Difference]: With dead ends: 1157 [2018-09-19 08:05:37,413 INFO L226 Difference]: Without dead ends: 777 [2018-09-19 08:05:37,416 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 08:05:37,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2018-09-19 08:05:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 766. [2018-09-19 08:05:37,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2018-09-19 08:05:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 946 transitions. [2018-09-19 08:05:37,468 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 946 transitions. Word has length 118 [2018-09-19 08:05:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:05:37,469 INFO L480 AbstractCegarLoop]: Abstraction has 766 states and 946 transitions. [2018-09-19 08:05:37,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:05:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 946 transitions. [2018-09-19 08:05:37,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-19 08:05:37,473 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:05:37,473 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 08:05:37,473 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:05:37,474 INFO L82 PathProgramCache]: Analyzing trace with hash 30520894, now seen corresponding path program 1 times [2018-09-19 08:05:37,474 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:05:37,474 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-19 08:05:37,475 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], [137], [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], [413], [415], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:05:37,479 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:05:37,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:06:19,453 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:06:19,454 INFO L272 AbstractInterpreter]: Visited 100 different actions 165 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:06:19,469 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:06:21,779 INFO L232 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 80.2% of their original sizes. [2018-09-19 08:06:21,780 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:06:23,548 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:06:23,549 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:06:23,549 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-19 08:06:23,549 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:06:23,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-19 08:06:23,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-19 08:06:23,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-09-19 08:06:23,551 INFO L87 Difference]: Start difference. First operand 766 states and 946 transitions. Second operand 19 states. Received shutdown request... [2018-09-19 08:06:26,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 08:06:26,862 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:06:26,868 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:06:26,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:06:26 BoogieIcfgContainer [2018-09-19 08:06:26,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:06:26,870 INFO L168 Benchmark]: Toolchain (without parser) took 273530.68 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 391.0 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,872 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:06:26,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,874 INFO L168 Benchmark]: Boogie Preprocessor took 265.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -870.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,875 INFO L168 Benchmark]: RCFGBuilder took 3297.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,876 INFO L168 Benchmark]: TraceAbstraction took 269122.44 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -816.7 MB). Peak memory consumption was 325.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:06:26,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 87.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 265.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -870.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3297.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269122.44 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -816.7 MB). Peak memory consumption was 325.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 446]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 446). Cancelled while BasicCegarLoop was constructing difference of abstraction (766states) and FLOYD_HOARE automaton (currently 18 states, 19 states before enhancement), while ReachableStatesComputation was computing reachable states (262 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 269.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 35.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 938 SDtfs, 2519 SDslu, 1432 SDs, 0 SdLazy, 7115 SolverSat, 683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 617 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 215.8s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9934318395235632 AbsIntWeakeningRatio, 0.2570921985815603 AbsIntAvgWeakeningVarsNumRemoved, 2793.3067375886526 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label02_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-06-26-894.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label02_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-06-26-894.csv Completed graceful shutdown