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_label46_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:56:36,104 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:56:36,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:56:36,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:56:36,119 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:56:36,120 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:56:36,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:56:36,123 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:56:36,125 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:56:36,126 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:56:36,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:56:36,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:56:36,128 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:56:36,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:56:36,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:56:36,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:56:36,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:56:36,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:56:36,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:56:36,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:56:36,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:56:36,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:56:36,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:56:36,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:56:36,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:56:36,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:56:36,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:56:36,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:56:36,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:56:36,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:56:36,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:56:36,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 01:56:36,150 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 01:56:36,166 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:56:36,166 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:56:36,167 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:56:36,167 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:56:36,168 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:56:36,168 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:56:36,168 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:56:36,168 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:56:36,168 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:56:36,169 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:56:36,169 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:56:36,169 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:56:36,170 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:56:36,170 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:56:36,170 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:56:36,170 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:56:36,170 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:56:36,170 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:56:36,171 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:56:36,171 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:56:36,171 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:56:36,171 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:56:36,171 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:56:36,172 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:56:36,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:56:36,172 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:56:36,172 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:56:36,172 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:56:36,173 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:56:36,173 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:56:36,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:56:36,173 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:56:36,173 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:56:36,174 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:56:36,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:56:36,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:56:36,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:56:36,252 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:56:36,252 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:56:36,253 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-09-19 01:56:36,604 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02805e335/90080d108d574918b626815de85fe656/FLAG331d32183 [2018-09-19 01:56:36,870 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:56:36,871 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-09-19 01:56:36,884 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02805e335/90080d108d574918b626815de85fe656/FLAG331d32183 [2018-09-19 01:56:36,920 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02805e335/90080d108d574918b626815de85fe656 [2018-09-19 01:56:36,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:56:36,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:56:36,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:56:36,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:56:36,952 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:56:36,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:56:36" (1/1) ... [2018-09-19 01:56:36,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f45801e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:36, skipping insertion in model container [2018-09-19 01:56:36,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:56:36" (1/1) ... [2018-09-19 01:56:36,969 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:56:37,511 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:56:37,531 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:56:37,688 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:56:37,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37 WrapperNode [2018-09-19 01:56:37,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:56:37,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:56:37,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:56:37,754 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:56:37,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:56:37,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:56:37,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:56:37,866 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:56:37,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:37,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:38,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:38,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (1/1) ... [2018-09-19 01:56:38,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:56:38,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:56:38,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:56:38,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:56:38,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (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 01:56:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:56:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:56:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:56:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:56:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:56:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:56:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:56:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:56:41,775 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:56:41,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:56:41 BoogieIcfgContainer [2018-09-19 01:56:41,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:56:41,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:56:41,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:56:41,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:56:41,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:56:36" (1/3) ... [2018-09-19 01:56:41,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8f260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:56:41, skipping insertion in model container [2018-09-19 01:56:41,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:37" (2/3) ... [2018-09-19 01:56:41,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8f260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:56:41, skipping insertion in model container [2018-09-19 01:56:41,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:56:41" (3/3) ... [2018-09-19 01:56:41,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label46_true-unreach-call_false-termination.c [2018-09-19 01:56:41,798 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:56:41,808 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:56:41,864 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:56:41,865 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:56:41,865 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:56:41,866 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:56:41,866 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:56:41,866 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:56:41,866 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:56:41,867 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:56:41,867 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:56:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:56:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-19 01:56:41,918 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:56:41,919 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] [2018-09-19 01:56:41,921 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:56:41,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2115690369, now seen corresponding path program 1 times [2018-09-19 01:56:41,928 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:56:41,929 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 120 with the following transitions: [2018-09-19 01:56:41,932 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], [623], [625], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:56:42,004 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:56:42,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:01,459 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:01,461 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:57:01,484 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:04,394 INFO L232 lantSequenceWeakener]: Weakened 117 states. On average, predicates are now at 81.13% of their original sizes. [2018-09-19 01:57:04,394 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:05,619 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:05,620 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:05,621 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:57:05,621 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:05,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:57:05,636 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:57:05,637 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:57:05,641 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:57:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:57:13,610 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:57:13,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:57:13,612 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2018-09-19 01:57:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:57:13,630 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:57:13,630 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:57:13,638 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:57:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:57:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:57:13,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:57:13,724 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 119 [2018-09-19 01:57:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:57:13,725 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:57:13,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:57:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:57:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 01:57:13,734 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:57:13,735 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] [2018-09-19 01:57:13,735 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:57:13,736 INFO L82 PathProgramCache]: Analyzing trace with hash -108977794, now seen corresponding path program 1 times [2018-09-19 01:57:13,736 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:57:13,736 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-19 01:57:13,737 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], [623], [625], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:57:13,747 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:57:13,748 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:48,679 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:48,679 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 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 01:57:48,686 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:50,888 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 81.12% of their original sizes. [2018-09-19 01:57:50,889 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:51,863 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:51,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:51,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:57:51,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:51,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:57:51,865 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:57:51,865 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:51,866 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:58:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:58:02,372 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:58:02,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:58:02,375 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 129 [2018-09-19 01:58:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:58:02,388 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:58:02,388 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:58:02,402 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:58:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:58:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:58:02,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:58:02,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:58:02,449 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 129 [2018-09-19 01:58:02,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:58:02,450 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:58:02,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:58:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:58:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-09-19 01:58:02,458 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:58:02,459 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] [2018-09-19 01:58:02,459 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:58:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -749341818, now seen corresponding path program 1 times [2018-09-19 01:58:02,460 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:58:02,460 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-09-19 01:58:02,461 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], [623], [625], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:58:02,470 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:58:02,471 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:58:37,182 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:58:37,183 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 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 01:58:37,189 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:58:39,335 INFO L232 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 81.11% of their original sizes. [2018-09-19 01:58:39,336 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:58:40,001 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:58:40,002 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:58:40,002 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:58:40,002 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:58:40,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:58:40,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:58:40,004 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:58:40,004 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:58:48,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:58:48,976 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:58:48,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:58:48,979 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 133 [2018-09-19 01:58:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:58:48,984 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:58:48,985 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:58:48,987 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 120 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 01:58:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:58:49,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:58:49,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:58:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:58:49,022 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 133 [2018-09-19 01:58:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:58:49,022 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:58:49,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:58:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:58:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-19 01:58:49,029 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:58:49,029 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] [2018-09-19 01:58:49,029 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:58:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash 510684339, now seen corresponding path program 1 times [2018-09-19 01:58:49,030 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:58:49,030 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-19 01:58:49,030 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], [623], [625], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:58:49,038 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:58:49,038 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:59:40,082 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:59:40,082 INFO L272 AbstractInterpreter]: Visited 123 different actions 361 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 01:59:40,089 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:59:42,010 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 81.13% of their original sizes. [2018-09-19 01:59:42,011 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:59:42,693 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:59:42,694 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:59:42,694 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:59:42,694 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:59:42,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:59:42,695 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:59:42,695 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:59:42,695 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:59:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:59:51,097 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:59:51,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:59:51,099 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-09-19 01:59:51,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:59:51,107 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:59:51,107 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:59:51,111 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 01:59:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:59:51,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:59:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:59:51,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:59:51,157 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 138 [2018-09-19 01:59:51,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:59:51,157 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:59:51,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:59:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:59:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-09-19 01:59:51,162 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:59:51,162 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] [2018-09-19 01:59:51,162 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:59:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2067934022, now seen corresponding path program 1 times [2018-09-19 01:59:51,163 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:59:51,163 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-09-19 01:59:51,163 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], [623], [625], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:59:51,169 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:59:51,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 02:00:56,187 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 02:00:56,187 INFO L272 AbstractInterpreter]: Visited 124 different actions 496 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 02:00:56,195 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 02:00:58,436 INFO L232 lantSequenceWeakener]: Weakened 150 states. On average, predicates are now at 81.11% of their original sizes. [2018-09-19 02:00:58,436 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 02:00:59,143 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 02:00:59,143 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 02:00:59,143 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 02:00:59,144 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 02:00:59,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 02:00:59,144 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 02:00:59,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 02:00:59,145 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 02:01:00,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 02:01:00,308 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 02:01:00,314 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 02:01:00,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 02:01:00 BoogieIcfgContainer [2018-09-19 02:01:00,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 02:01:00,315 INFO L168 Benchmark]: Toolchain (without parser) took 263380.71 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -72.2 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-19 02:01:00,317 INFO L168 Benchmark]: CDTParser took 0.22 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 02:01:00,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:00,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.30 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 02:01:00,319 INFO L168 Benchmark]: Boogie Preprocessor took 327.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -871.3 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:00,320 INFO L168 Benchmark]: RCFGBuilder took 3582.53 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: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:00,321 INFO L168 Benchmark]: TraceAbstraction took 258536.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 658.2 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-19 02:01:00,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 809.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 112.30 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 327.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -871.3 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3582.53 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: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 258536.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 658.2 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 508]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 508). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 17 states, 14 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 25 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 258.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 37.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 930 SDtfs, 3958 SDslu, 2266 SDs, 0 SdLazy, 9262 SolverSat, 799 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 727 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 6.9s 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, 205.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9937643309502023 AbsIntWeakeningRatio, 0.22072072072072071 AbsIntAvgWeakeningVarsNumRemoved, 2441.735735735736 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_label46_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_02-01-00-339.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label46_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_02-01-00-339.csv Completed graceful shutdown