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_label24_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:34:19,713 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:34:19,715 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:34:19,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:34:19,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:34:19,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:34:19,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:34:19,732 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:34:19,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:34:19,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:34:19,736 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:34:19,736 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:34:19,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:34:19,738 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:34:19,739 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:34:19,740 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:34:19,741 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:34:19,743 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:34:19,745 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:34:19,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:34:19,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:34:19,749 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:34:19,752 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:34:19,752 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:34:19,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:34:19,754 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:34:19,755 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:34:19,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:34:19,757 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:34:19,758 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:34:19,758 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:34:19,759 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 01:34:19,759 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 01:34:19,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 01:34:19,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 01:34:19,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 01:34:19,762 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 [2018-09-19 01:34:19,778 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:34:19,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:34:19,779 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:34:19,779 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:34:19,780 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:34:19,780 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:34:19,780 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:34:19,780 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:34:19,781 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:34:19,781 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:34:19,781 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:34:19,781 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:34:19,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:34:19,782 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:34:19,782 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:34:19,783 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:34:19,783 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:34:19,783 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:34:19,783 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:34:19,783 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:34:19,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:34:19,784 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:34:19,784 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:34:19,784 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:34:19,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:34:19,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:34:19,785 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:34:19,785 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:34:19,786 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:34:19,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:34:19,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:34:19,786 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:34:19,787 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:34:19,787 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:34:19,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:34:19,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:34:19,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:34:19,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:34:19,870 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:34:19,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-09-19 01:34:20,235 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6fa5de9/4335d217eba14d98b54319232965d1d5/FLAG5504aa282 [2018-09-19 01:34:20,503 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:34:20,506 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-09-19 01:34:20,518 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6fa5de9/4335d217eba14d98b54319232965d1d5/FLAG5504aa282 [2018-09-19 01:34:20,533 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6fa5de9/4335d217eba14d98b54319232965d1d5 [2018-09-19 01:34:20,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:34:20,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:34:20,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:34:20,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:34:20,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:34:20,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:34:20" (1/1) ... [2018-09-19 01:34:20,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b469391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:20, skipping insertion in model container [2018-09-19 01:34:20,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:34:20" (1/1) ... [2018-09-19 01:34:20,571 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:34:21,109 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:34:21,136 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:34:21,290 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:34:21,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21 WrapperNode [2018-09-19 01:34:21,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:34:21,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:34:21,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:34:21,332 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:34:21,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:34:21,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:34:21,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:34:21,429 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:34:21,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (1/1) ... [2018-09-19 01:34:21,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:34:21,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:34:21,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:34:21,668 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:34:21,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (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 01:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:34:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:34:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:34:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:34:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:34:25,078 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:34:25,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:34:25 BoogieIcfgContainer [2018-09-19 01:34:25,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:34:25,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:34:25,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:34:25,085 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:34:25,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:34:20" (1/3) ... [2018-09-19 01:34:25,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58addb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:34:25, skipping insertion in model container [2018-09-19 01:34:25,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:34:21" (2/3) ... [2018-09-19 01:34:25,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58addb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:34:25, skipping insertion in model container [2018-09-19 01:34:25,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:34:25" (3/3) ... [2018-09-19 01:34:25,090 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label24_true-unreach-call_false-termination.c [2018-09-19 01:34:25,102 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:34:25,114 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:34:25,188 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:34:25,189 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:34:25,189 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:34:25,190 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:34:25,190 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:34:25,190 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:34:25,190 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:34:25,191 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:34:25,191 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:34:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-19 01:34:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-09-19 01:34:25,240 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:34:25,241 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] [2018-09-19 01:34:25,243 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:34:25,251 INFO L82 PathProgramCache]: Analyzing trace with hash 329210229, now seen corresponding path program 1 times [2018-09-19 01:34:25,255 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:34:25,257 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-09-19 01:34:25,261 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], [477], [479], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-19 01:34:25,361 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:34:25,362 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:34:44,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:34:44,242 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 01:34:44,256 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:34:46,564 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-19 01:34:46,565 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:34:47,862 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:34:47,866 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:34:47,866 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 01:34:47,867 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:34:47,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 01:34:47,882 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 01:34:47,883 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:34:47,886 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-19 01:34:52,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:34:52,099 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-19 01:34:52,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 01:34:52,101 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2018-09-19 01:34:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:34:52,116 INFO L225 Difference]: With dead ends: 475 [2018-09-19 01:34:52,116 INFO L226 Difference]: Without dead ends: 265 [2018-09-19 01:34:52,123 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 110 GetRequests, 94 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 01:34:52,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-19 01:34:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-19 01:34:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-19 01:34:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-19 01:34:52,192 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 105 [2018-09-19 01:34:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:34:52,193 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-19 01:34:52,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 01:34:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-19 01:34:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 01:34:52,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:34:52,198 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] [2018-09-19 01:34:52,199 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:34:52,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1841863666, now seen corresponding path program 1 times [2018-09-19 01:34:52,199 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:34:52,200 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 01:34:52,200 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], [477], [479], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:34:52,208 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:34:52,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:35:36,059 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:35:36,059 INFO L272 AbstractInterpreter]: Visited 108 different actions 173 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 01:35:36,097 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:35:39,327 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 80.42% of their original sizes. [2018-09-19 01:35:39,327 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:35:40,496 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:35:40,497 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:35:40,497 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:35:40,497 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:35:40,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:35:40,499 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:35:40,499 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:35:40,499 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 14 states. [2018-09-19 01:35:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:35:46,760 INFO L93 Difference]: Finished difference Result 608 states and 996 transitions. [2018-09-19 01:35:46,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:35:46,761 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2018-09-19 01:35:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:35:46,766 INFO L225 Difference]: With dead ends: 608 [2018-09-19 01:35:46,766 INFO L226 Difference]: Without dead ends: 410 [2018-09-19 01:35:46,770 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 101 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 01:35:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-19 01:35:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-19 01:35:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-19 01:35:46,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 549 transitions. [2018-09-19 01:35:46,811 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 549 transitions. Word has length 114 [2018-09-19 01:35:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:35:46,812 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 549 transitions. [2018-09-19 01:35:46,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:35:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 549 transitions. [2018-09-19 01:35:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-09-19 01:35:46,816 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:35:46,816 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] [2018-09-19 01:35:46,816 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:35:46,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1599647070, now seen corresponding path program 1 times [2018-09-19 01:35:46,817 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:35:46,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-09-19 01:35:46,818 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], [477], [479], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:35:46,824 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:35:46,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:36:28,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:36:28,871 INFO L272 AbstractInterpreter]: Visited 108 different actions 172 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 01:36:28,878 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:36:32,594 INFO L232 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 80.41% of their original sizes. [2018-09-19 01:36:32,594 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:36:34,349 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:36:34,350 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:36:34,350 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 01:36:34,351 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:36:34,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 01:36:34,351 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 01:36:34,352 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-19 01:36:34,352 INFO L87 Difference]: Start difference. First operand 403 states and 549 transitions. Second operand 13 states. [2018-09-19 01:36:45,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:36:45,628 INFO L93 Difference]: Finished difference Result 953 states and 1546 transitions. [2018-09-19 01:36:45,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 01:36:45,629 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 117 [2018-09-19 01:36:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:36:45,635 INFO L225 Difference]: With dead ends: 953 [2018-09-19 01:36:45,636 INFO L226 Difference]: Without dead ends: 755 [2018-09-19 01:36:45,638 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2018-09-19 01:36:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2018-09-19 01:36:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 747. [2018-09-19 01:36:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2018-09-19 01:36:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 919 transitions. [2018-09-19 01:36:45,690 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 919 transitions. Word has length 117 [2018-09-19 01:36:45,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:36:45,691 INFO L480 AbstractCegarLoop]: Abstraction has 747 states and 919 transitions. [2018-09-19 01:36:45,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 01:36:45,691 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 919 transitions. [2018-09-19 01:36:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-19 01:36:45,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:36:45,695 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:36:45,695 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:36:45,696 INFO L82 PathProgramCache]: Analyzing trace with hash -124672667, now seen corresponding path program 1 times [2018-09-19 01:36:45,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:36:45,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-09-19 01:36:45,696 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], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:36:45,702 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:36:45,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:37:54,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:37:54,237 INFO L272 AbstractInterpreter]: Visited 109 different actions 285 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 01:37:54,242 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:37:57,022 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 80.42% of their original sizes. [2018-09-19 01:37:57,023 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:37:57,609 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:37:57,610 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:37:57,610 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:37:57,610 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:37:57,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:37:57,611 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:37:57,612 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:37:57,612 INFO L87 Difference]: Start difference. First operand 747 states and 919 transitions. Second operand 11 states. [2018-09-19 01:38:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:38:06,418 INFO L93 Difference]: Finished difference Result 1471 states and 1928 transitions. [2018-09-19 01:38:06,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 01:38:06,419 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-09-19 01:38:06,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:38:06,426 INFO L225 Difference]: With dead ends: 1471 [2018-09-19 01:38:06,426 INFO L226 Difference]: Without dead ends: 929 [2018-09-19 01:38:06,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2018-09-19 01:38:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2018-09-19 01:38:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 915. [2018-09-19 01:38:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-09-19 01:38:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1106 transitions. [2018-09-19 01:38:06,478 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1106 transitions. Word has length 126 [2018-09-19 01:38:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:38:06,479 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1106 transitions. [2018-09-19 01:38:06,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:38:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1106 transitions. [2018-09-19 01:38:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-19 01:38:06,482 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:38:06,483 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:38:06,483 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:38:06,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1194583330, now seen corresponding path program 1 times [2018-09-19 01:38:06,484 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:38:06,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-09-19 01:38:06,484 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], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:38:06,491 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:38:06,491 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:38:45,425 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:38:45,425 INFO L272 AbstractInterpreter]: Visited 108 different actions 173 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 01:38:45,431 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 01:38:48,031 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 80.33% of their original sizes. [2018-09-19 01:38:48,031 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:38:48,052 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:38:48,056 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:38:48,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:38:48 BoogieIcfgContainer [2018-09-19 01:38:48,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:38:48,058 INFO L168 Benchmark]: Toolchain (without parser) took 267514.45 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 188.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:38:48,060 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:38:48,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.43 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:38:48,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.41 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 01:38:48,062 INFO L168 Benchmark]: Boogie Preprocessor took 238.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2018-09-19 01:38:48,063 INFO L168 Benchmark]: RCFGBuilder took 3411.97 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 7.1 GB. [2018-09-19 01:38:48,064 INFO L168 Benchmark]: TraceAbstraction took 262976.30 ms. Allocated memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: 1.1 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -943.9 MB). Peak memory consumption was 118.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:38:48,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.43 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 97.41 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 238.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3411.97 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 111.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262976.30 ms. Allocated memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: 1.1 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -943.9 MB). Peak memory consumption was 118.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 470]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 470). Cancelled while BasicCegarLoop was analyzing trace of length 148 with TraceHistMax 2, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 262.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 30.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 924 SDtfs, 2733 SDslu, 965 SDs, 0 SdLazy, 5766 SolverSat, 728 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 511 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=915occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 212.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.993866817038559 AbsIntWeakeningRatio, 0.24006622516556292 AbsIntAvgWeakeningVarsNumRemoved, 2800.9619205298013 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 29 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_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-38-48-083.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-38-48-083.csv Completed graceful shutdown