java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:43:14,139 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:43:14,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:43:14,156 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:43:14,156 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:43:14,157 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:43:14,159 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:43:14,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:43:14,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:43:14,164 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:43:14,165 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:43:14,165 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:43:14,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:43:14,167 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:43:14,168 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:43:14,169 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:43:14,170 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:43:14,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:43:14,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:43:14,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:43:14,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:43:14,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:43:14,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:43:14,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:43:14,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:43:14,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:43:14,184 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:43:14,185 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:43:14,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:43:14,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:43:14,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:43:14,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 01:43:14,189 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 01:43:14,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 01:43:14,190 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 01:43:14,191 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 01:43:14,191 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 01:43:14,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:43:14,219 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:43:14,221 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:43:14,221 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:43:14,221 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:43:14,222 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:43:14,222 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:43:14,222 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:43:14,222 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:43:14,222 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:43:14,223 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:43:14,223 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:43:14,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:43:14,225 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:43:14,225 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:43:14,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:43:14,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:43:14,225 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:43:14,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:43:14,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:43:14,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:43:14,226 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:43:14,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:43:14,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:43:14,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:43:14,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:43:14,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:43:14,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:43:14,229 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:43:14,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:43:14,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:43:14,230 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:43:14,230 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:43:14,230 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:43:14,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:43:14,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:43:14,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:43:14,318 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:43:14,318 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:43:14,319 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58_true-unreach-call_false-termination.c [2018-09-19 01:43:14,682 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb41efb8a/ff2f2f8c04b544aa99c99c02fd4a30fe/FLAGbc9be705f [2018-09-19 01:43:14,995 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:43:14,996 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58_true-unreach-call_false-termination.c [2018-09-19 01:43:15,008 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb41efb8a/ff2f2f8c04b544aa99c99c02fd4a30fe/FLAGbc9be705f [2018-09-19 01:43:15,024 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb41efb8a/ff2f2f8c04b544aa99c99c02fd4a30fe [2018-09-19 01:43:15,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:43:15,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:43:15,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:43:15,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:43:15,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:43:15,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:15,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121ead65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15, skipping insertion in model container [2018-09-19 01:43:15,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:15,068 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:43:15,573 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:43:15,593 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:43:15,720 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:43:15,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15 WrapperNode [2018-09-19 01:43:15,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:43:15,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:43:15,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:43:15,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:43:15,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:15,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:15,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:43:15,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:43:15,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:43:15,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:43:16,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (1/1) ... [2018-09-19 01:43:16,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:43:16,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:43:16,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:43:16,118 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:43:16,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (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 01:43:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:43:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:43:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:43:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:43:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:43:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:43:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:43:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:43:19,389 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:43:19,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:43:19 BoogieIcfgContainer [2018-09-19 01:43:19,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:43:19,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:43:19,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:43:19,395 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:43:19,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:43:15" (1/3) ... [2018-09-19 01:43:19,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d289e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:43:19, skipping insertion in model container [2018-09-19 01:43:19,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:43:15" (2/3) ... [2018-09-19 01:43:19,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d289e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:43:19, skipping insertion in model container [2018-09-19 01:43:19,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:43:19" (3/3) ... [2018-09-19 01:43:19,400 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label58_true-unreach-call_false-termination.c [2018-09-19 01:43:19,410 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:43:19,419 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:43:19,473 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:43:19,474 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:43:19,475 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:43:19,475 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:43:19,475 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:43:19,475 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:43:19,475 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:43:19,476 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:43:19,476 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:43:19,503 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-19 01:43:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-19 01:43:19,521 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:43:19,524 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] [2018-09-19 01:43:19,526 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:43:19,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1615587024, now seen corresponding path program 1 times [2018-09-19 01:43:19,533 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:43:19,534 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-09-19 01:43:19,537 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-19 01:43:19,611 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:43:19,611 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:43:38,214 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:43:38,216 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-19 01:43:38,256 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:43:40,829 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-19 01:43:40,829 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:43:42,258 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:43:42,260 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:43:42,260 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 01:43:42,261 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:43:42,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 01:43:42,276 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 01:43:42,277 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:43:42,280 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-19 01:43:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:43:46,540 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-19 01:43:46,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 01:43:46,543 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2018-09-19 01:43:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:43:46,558 INFO L225 Difference]: With dead ends: 475 [2018-09-19 01:43:46,558 INFO L226 Difference]: Without dead ends: 265 [2018-09-19 01:43:46,565 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-19 01:43:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-19 01:43:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-19 01:43:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-19 01:43:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-19 01:43:46,634 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 106 [2018-09-19 01:43:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:43:46,634 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-19 01:43:46,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 01:43:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-19 01:43:46,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-19 01:43:46,640 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:43:46,640 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:43:46,641 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:43:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1263203315, now seen corresponding path program 1 times [2018-09-19 01:43:46,641 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:43:46,642 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-19 01:43:46,642 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:43:46,653 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:43:46,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:44:26,436 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:44:26,436 INFO L272 AbstractInterpreter]: Visited 109 different actions 174 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 01:44:26,443 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:44:29,474 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 80.44% of their original sizes. [2018-09-19 01:44:29,474 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:44:30,678 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:44:30,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:44:30,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:44:30,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:44:30,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:44:30,681 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:44:30,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:44:30,681 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 14 states. [2018-09-19 01:44:38,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:44:38,514 INFO L93 Difference]: Finished difference Result 608 states and 996 transitions. [2018-09-19 01:44:38,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:44:38,517 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 115 [2018-09-19 01:44:38,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:44:38,523 INFO L225 Difference]: With dead ends: 608 [2018-09-19 01:44:38,523 INFO L226 Difference]: Without dead ends: 410 [2018-09-19 01:44:38,526 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 129 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:44:38,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-19 01:44:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-19 01:44:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-19 01:44:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 549 transitions. [2018-09-19 01:44:38,564 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 549 transitions. Word has length 115 [2018-09-19 01:44:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:44:38,565 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 549 transitions. [2018-09-19 01:44:38,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:44:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 549 transitions. [2018-09-19 01:44:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-19 01:44:38,569 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:44:38,569 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:44:38,570 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:44:38,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1950552899, now seen corresponding path program 1 times [2018-09-19 01:44:38,570 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:44:38,570 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-09-19 01:44:38,571 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:44:38,577 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:44:38,577 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:45:18,980 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:45:18,980 INFO L272 AbstractInterpreter]: Visited 109 different actions 173 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 01:45:18,988 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:45:21,879 INFO L232 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 80.43% of their original sizes. [2018-09-19 01:45:21,880 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:45:23,444 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:45:23,445 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:45:23,445 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 01:45:23,445 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:45:23,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 01:45:23,446 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 01:45:23,446 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-19 01:45:23,447 INFO L87 Difference]: Start difference. First operand 403 states and 549 transitions. Second operand 13 states. [2018-09-19 01:45:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:45:35,613 INFO L93 Difference]: Finished difference Result 953 states and 1546 transitions. [2018-09-19 01:45:35,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 01:45:35,614 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 118 [2018-09-19 01:45:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:45:35,623 INFO L225 Difference]: With dead ends: 953 [2018-09-19 01:45:35,623 INFO L226 Difference]: Without dead ends: 755 [2018-09-19 01:45:35,625 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2018-09-19 01:45:35,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2018-09-19 01:45:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 747. [2018-09-19 01:45:35,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2018-09-19 01:45:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 919 transitions. [2018-09-19 01:45:35,677 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 919 transitions. Word has length 118 [2018-09-19 01:45:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:45:35,678 INFO L480 AbstractCegarLoop]: Abstraction has 747 states and 919 transitions. [2018-09-19 01:45:35,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 01:45:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 919 transitions. [2018-09-19 01:45:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-19 01:45:35,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:45:35,682 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:45:35,683 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:45:35,683 INFO L82 PathProgramCache]: Analyzing trace with hash 430119136, now seen corresponding path program 1 times [2018-09-19 01:45:35,683 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:45:35,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-09-19 01:45:35,684 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:45:35,691 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:45:35,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:46:40,237 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:46:40,237 INFO L272 AbstractInterpreter]: Visited 110 different actions 287 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-09-19 01:46:40,247 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:46:42,738 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 80.44% of their original sizes. [2018-09-19 01:46:42,739 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:46:43,378 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:46:43,378 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:46:43,379 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:46:43,379 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:46:43,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:46:43,380 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:46:43,380 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:46:43,380 INFO L87 Difference]: Start difference. First operand 747 states and 919 transitions. Second operand 11 states. [2018-09-19 01:46:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:46:54,902 INFO L93 Difference]: Finished difference Result 1471 states and 1928 transitions. [2018-09-19 01:46:54,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 01:46:54,903 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 127 [2018-09-19 01:46:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:46:54,916 INFO L225 Difference]: With dead ends: 1471 [2018-09-19 01:46:54,916 INFO L226 Difference]: Without dead ends: 929 [2018-09-19 01:46:54,919 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2018-09-19 01:46:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2018-09-19 01:46:54,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 915. [2018-09-19 01:46:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-09-19 01:46:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1106 transitions. [2018-09-19 01:46:54,969 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1106 transitions. Word has length 127 [2018-09-19 01:46:54,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:46:54,970 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1106 transitions. [2018-09-19 01:46:54,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:46:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1106 transitions. [2018-09-19 01:46:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-09-19 01:46:54,974 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:46:54,975 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:46:54,975 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:46:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1622626951, now seen corresponding path program 1 times [2018-09-19 01:46:54,975 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:46:54,976 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-09-19 01:46:54,976 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:46:54,983 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:46:54,984 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:47:34,348 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:47:34,348 INFO L272 AbstractInterpreter]: Visited 109 different actions 174 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 01:47:34,361 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:47:37,586 INFO L232 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 80.34% of their original sizes. [2018-09-19 01:47:37,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:47:39,347 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:47:39,348 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:47:39,348 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-19 01:47:39,348 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:47:39,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-19 01:47:39,349 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-19 01:47:39,349 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-09-19 01:47:39,350 INFO L87 Difference]: Start difference. First operand 915 states and 1106 transitions. Second operand 19 states. Received shutdown request... [2018-09-19 01:47:40,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 01:47:40,158 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:47:40,165 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:47:40,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:47:40 BoogieIcfgContainer [2018-09-19 01:47:40,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:47:40,166 INFO L168 Benchmark]: Toolchain (without parser) took 265129.57 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -566.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,168 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 01:47:40,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,170 INFO L168 Benchmark]: Boogie Preprocessor took 213.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -847.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,171 INFO L168 Benchmark]: RCFGBuilder took 3273.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,172 INFO L168 Benchmark]: TraceAbstraction took 260773.85 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 132.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-19 01:47:40,178 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 728.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 133.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -847.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3273.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260773.85 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 132.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 473]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 473). Cancelled while BasicCegarLoop was constructing difference of abstraction (915states) and FLOYD_HOARE automaton (currently 9 states, 19 states before enhancement), while ReachableStatesComputation was computing reachable states (41 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 260.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 36.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 936 SDtfs, 2833 SDslu, 1538 SDs, 0 SdLazy, 7244 SolverSat, 739 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 668 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=915occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 202.8s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9939171715784723 AbsIntWeakeningRatio, 0.23809523809523808 AbsIntAvgWeakeningVarsNumRemoved, 2798.5484400656815 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label58_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-47-40-193.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label58_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-47-40-193.csv Completed graceful shutdown