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/Problem02_label37_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:52:47,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:52:47,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:52:47,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:52:47,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:52:47,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:52:47,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:52:47,727 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:52:47,728 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:52:47,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:52:47,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:52:47,736 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:52:47,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:52:47,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:52:47,743 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:52:47,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:52:47,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:52:47,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:52:47,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:52:47,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:52:47,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:52:47,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:52:47,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:52:47,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:52:47,758 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:52:47,758 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:52:47,759 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:52:47,760 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:52:47,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:52:47,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:52:47,762 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:52:47,762 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 01:52:47,765 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 01:52:47,780 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:52:47,781 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:52:47,781 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:52:47,782 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:52:47,782 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:52:47,782 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:52:47,782 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:52:47,782 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:52:47,783 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:52:47,783 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:52:47,783 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:52:47,783 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:52:47,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:52:47,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:52:47,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:52:47,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:52:47,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:52:47,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:52:47,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:52:47,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:52:47,786 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:52:47,786 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:52:47,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:52:47,786 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:52:47,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:52:47,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:52:47,787 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:52:47,787 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:52:47,787 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:52:47,787 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:52:47,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:52:47,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:52:47,788 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:52:47,788 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:52:47,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:52:47,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:52:47,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:52:47,868 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:52:47,869 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:52:47,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label37_true-unreach-call_false-termination.c [2018-09-19 01:52:48,229 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a2a3850/dcacc4b3fab14e99addbf74946a87d15/FLAG20ac54a0b [2018-09-19 01:52:48,504 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:52:48,505 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label37_true-unreach-call_false-termination.c [2018-09-19 01:52:48,518 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a2a3850/dcacc4b3fab14e99addbf74946a87d15/FLAG20ac54a0b [2018-09-19 01:52:48,535 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a2a3850/dcacc4b3fab14e99addbf74946a87d15 [2018-09-19 01:52:48,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:52:48,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:52:48,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:52:48,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:52:48,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:52:48,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:52:48" (1/1) ... [2018-09-19 01:52:48,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2aa5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:48, skipping insertion in model container [2018-09-19 01:52:48,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:52:48" (1/1) ... [2018-09-19 01:52:48,574 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:52:49,091 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:52:49,110 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:52:49,216 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:52:49,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49 WrapperNode [2018-09-19 01:52:49,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:52:49,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:52:49,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:52:49,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:52:49,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:52:49,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:52:49,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:52:49,367 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:52:49,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (1/1) ... [2018-09-19 01:52:49,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:52:49,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:52:49,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:52:49,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:52:49,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (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 01:52:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:52:49,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:52:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:52:49,704 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:52:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:52:49,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:52:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:52:49,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:52:53,330 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:52:53,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:52:53 BoogieIcfgContainer [2018-09-19 01:52:53,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:52:53,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:52:53,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:52:53,343 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:52:53,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:52:48" (1/3) ... [2018-09-19 01:52:53,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e071ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:52:53, skipping insertion in model container [2018-09-19 01:52:53,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:49" (2/3) ... [2018-09-19 01:52:53,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e071ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:52:53, skipping insertion in model container [2018-09-19 01:52:53,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:52:53" (3/3) ... [2018-09-19 01:52:53,353 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label37_true-unreach-call_false-termination.c [2018-09-19 01:52:53,372 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:52:53,383 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:52:53,447 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:52:53,448 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:52:53,448 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:52:53,449 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:52:53,449 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:52:53,449 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:52:53,449 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:52:53,450 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:52:53,450 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:52:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:52:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-19 01:52:53,507 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:52:53,511 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:52:53,513 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:52:53,519 INFO L82 PathProgramCache]: Analyzing trace with hash 2132065567, now seen corresponding path program 1 times [2018-09-19 01:52:53,522 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:52:53,523 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-09-19 01:52:53,526 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [687], [689], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:52:53,613 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:52:53,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:53:12,409 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:53:12,411 INFO L272 AbstractInterpreter]: Visited 126 different actions 126 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:53:12,435 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:53:15,531 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 81.27% of their original sizes. [2018-09-19 01:53:15,531 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:53:16,315 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:53:16,317 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:53:16,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:53:16,318 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:53:16,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:53:16,331 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:53:16,332 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:53:16,335 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:53:23,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:53:23,826 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:53:23,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:53:23,828 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2018-09-19 01:53:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:53:23,845 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:53:23,845 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:53:23,852 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:53:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:53:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:53:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:53:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:53:23,928 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 127 [2018-09-19 01:53:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:53:23,929 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:53:23,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:53:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:53:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-19 01:53:23,935 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:53:23,936 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:53:23,936 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:53:23,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1255886622, now seen corresponding path program 1 times [2018-09-19 01:53:23,937 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:53:23,937 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-19 01:53:23,937 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [687], [689], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:53:23,945 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:53:23,945 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:53:57,686 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:53:57,688 INFO L272 AbstractInterpreter]: Visited 130 different actions 254 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:53:57,697 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:54:00,124 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 81.26% of their original sizes. [2018-09-19 01:54:00,124 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:54:00,890 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:54:00,890 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:54:00,890 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:54:00,891 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:54:00,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:54:00,892 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:54:00,892 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:54:00,893 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:54:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:54:08,980 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:54:08,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:54:08,984 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 137 [2018-09-19 01:54:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:54:08,991 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:54:08,991 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:54:08,996 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:54:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:54:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:54:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:54:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:54:09,043 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 137 [2018-09-19 01:54:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:54:09,046 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:54:09,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:54:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:54:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 01:54:09,057 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:54:09,057 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:09,058 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:54:09,058 INFO L82 PathProgramCache]: Analyzing trace with hash -706635482, now seen corresponding path program 1 times [2018-09-19 01:54:09,058 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:54:09,061 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 01:54:09,063 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [687], [689], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:54:09,069 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:54:09,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:54:43,939 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:54:43,939 INFO L272 AbstractInterpreter]: Visited 130 different actions 254 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:54:43,950 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:54:45,969 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 81.24% of their original sizes. [2018-09-19 01:54:45,970 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:54:46,611 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:54:46,611 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:54:46,611 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:54:46,612 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:54:46,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:54:46,612 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:54:46,613 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:54:46,613 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:54:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:54:55,730 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:54:55,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:54:55,732 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 141 [2018-09-19 01:54:55,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:54:55,737 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:54:55,738 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:54:55,740 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 01:54:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:54:55,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:54:55,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:54:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:54:55,784 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 141 [2018-09-19 01:54:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:54:55,785 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:54:55,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:54:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:54:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-19 01:54:55,788 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:54:55,789 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:54:55,789 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:54:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash -814049965, now seen corresponding path program 1 times [2018-09-19 01:54:55,789 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:54:55,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-19 01:54:55,790 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [687], [689], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:54:55,795 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:54:55,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:55:46,578 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:55:46,578 INFO L272 AbstractInterpreter]: Visited 131 different actions 385 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:55:46,587 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:55:48,477 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 81.25% of their original sizes. [2018-09-19 01:55:48,478 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:55:49,170 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:55:49,171 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:55:49,171 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:55:49,171 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:55:49,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:55:49,172 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:55:49,172 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:55:49,173 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:56:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:56:00,021 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:56:00,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:56:00,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 146 [2018-09-19 01:56:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:56:00,028 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:56:00,029 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:56:00,031 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 01:56:00,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:56:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:56:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:56:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:56:00,067 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 146 [2018-09-19 01:56:00,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:56:00,067 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:56:00,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:56:00,068 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:56:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-09-19 01:56:00,071 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:56:00,071 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:56:00,071 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:56:00,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1941898842, now seen corresponding path program 1 times [2018-09-19 01:56:00,072 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:56:00,072 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-09-19 01:56:00,072 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [687], [689], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:56:00,076 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:56:00,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:09,008 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:09,008 INFO L272 AbstractInterpreter]: Visited 132 different actions 528 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:57:09,015 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:11,150 INFO L232 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 81.22% of their original sizes. [2018-09-19 01:57:11,151 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:11,794 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:11,794 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:11,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:57:11,795 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:11,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:57:11,795 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:57:11,795 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:11,796 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 01:57:14,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 01:57:14,469 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:57:14,477 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:57:14,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:57:14 BoogieIcfgContainer [2018-09-19 01:57:14,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:57:14,478 INFO L168 Benchmark]: Toolchain (without parser) took 265932.84 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.8 MB). Peak memory consumption was 332.4 MB. Max. memory is 7.1 GB. [2018-09-19 01:57:14,480 INFO L168 Benchmark]: CDTParser took 0.20 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 01:57:14,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.60 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:57:14,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.44 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 01:57:14,482 INFO L168 Benchmark]: Boogie Preprocessor took 256.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -850.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-09-19 01:57:14,483 INFO L168 Benchmark]: RCFGBuilder took 3708.09 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-19 01:57:14,484 INFO L168 Benchmark]: TraceAbstraction took 261141.15 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 256.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 11.5 MB). Peak memory consumption was 268.4 MB. Max. memory is 7.1 GB. [2018-09-19 01:57:14,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 712.60 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 103.44 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. * Boogie Preprocessor took 256.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -850.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3708.09 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261141.15 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 256.9 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 11.5 MB). Peak memory consumption was 268.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 532]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 532). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 23 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (270 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 261.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 38.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 935 SDtfs, 3500 SDslu, 2354 SDs, 0 SdLazy, 9927 SolverSat, 811 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 770 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 207.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.994117626647076 AbsIntWeakeningRatio, 0.20821529745042494 AbsIntAvgWeakeningVarsNumRemoved, 2447.813031161473 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 42 StatesRemovedByMinimization, 4 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/Problem02_label37_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-57-14-503.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label37_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-57-14-503.csv Completed graceful shutdown