java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:20:10,998 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:20:11,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:20:11,015 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:20:11,016 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:20:11,017 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:20:11,018 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:20:11,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:20:11,022 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:20:11,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:20:11,023 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:20:11,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:20:11,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:20:11,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:20:11,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:20:11,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:20:11,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:20:11,030 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:20:11,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:20:11,034 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:20:11,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:20:11,036 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:20:11,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:20:11,039 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:20:11,039 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:20:11,040 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:20:11,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:20:11,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:20:11,043 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:20:11,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:20:11,044 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:20:11,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:20:11,048 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:20:11,075 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:20:11,075 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:20:11,076 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:20:11,076 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:20:11,076 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:20:11,077 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:20:11,077 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:20:11,077 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:20:11,077 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:20:11,077 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:20:11,078 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:20:11,078 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:20:11,078 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:20:11,079 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:20:11,079 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:20:11,079 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:20:11,079 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:20:11,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:20:11,080 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:20:11,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:20:11,080 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:20:11,080 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:20:11,081 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:20:11,081 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:20:11,081 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:20:11,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:20:11,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:20:11,082 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:20:11,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:20:11,082 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:20:11,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:20:11,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:20:11,083 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:20:11,083 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:20:11,083 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:20:11,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:20:11,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:20:11,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:20:11,156 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:20:11,157 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:20:11,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17_true-unreach-call_false-termination.c [2018-09-19 08:20:11,509 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b099a997/de2de86e523d4b6898e7e57275246059/FLAGc64fc0ad5 [2018-09-19 08:20:11,794 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:20:11,795 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label17_true-unreach-call_false-termination.c [2018-09-19 08:20:11,810 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b099a997/de2de86e523d4b6898e7e57275246059/FLAGc64fc0ad5 [2018-09-19 08:20:11,832 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b099a997/de2de86e523d4b6898e7e57275246059 [2018-09-19 08:20:11,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:20:11,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:20:11,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:20:11,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:20:11,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:20:11,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:20:11" (1/1) ... [2018-09-19 08:20:11,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bc1382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:11, skipping insertion in model container [2018-09-19 08:20:11,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:20:11" (1/1) ... [2018-09-19 08:20:11,881 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:20:12,420 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:20:12,440 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:20:12,580 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:20:12,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12 WrapperNode [2018-09-19 08:20:12,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:20:12,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:20:12,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:20:12,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:20:12,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:20:12,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:20:12,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:20:12,732 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:20:12,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... [2018-09-19 08:20:12,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:20:12,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:20:12,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:20:12,940 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:20:12,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:20:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:20:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:20:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:20:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:20:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:20:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:20:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:20:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:20:16,289 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:20:16,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:20:16 BoogieIcfgContainer [2018-09-19 08:20:16,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:20:16,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:20:16,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:20:16,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:20:16,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:20:11" (1/3) ... [2018-09-19 08:20:16,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acb01be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:20:16, skipping insertion in model container [2018-09-19 08:20:16,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:20:12" (2/3) ... [2018-09-19 08:20:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acb01be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:20:16, skipping insertion in model container [2018-09-19 08:20:16,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:20:16" (3/3) ... [2018-09-19 08:20:16,303 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label17_true-unreach-call_false-termination.c [2018-09-19 08:20:16,318 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:20:16,331 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:20:16,405 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:20:16,406 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:20:16,407 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:20:16,407 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:20:16,407 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:20:16,407 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:20:16,408 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:20:16,408 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:20:16,408 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:20:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 08:20:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-19 08:20:16,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:20:16,458 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:20:16,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:20:16,467 INFO L82 PathProgramCache]: Analyzing trace with hash -346865840, now seen corresponding path program 1 times [2018-09-19 08:20:16,470 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:20:16,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-09-19 08:20:16,476 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [679], [681], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 08:20:16,581 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:20:16,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:20:35,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:20:35,032 INFO L272 AbstractInterpreter]: Visited 125 different actions 125 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 08:20:35,051 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:20:38,032 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 81.25% of their original sizes. [2018-09-19 08:20:38,032 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:20:38,764 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:20:38,766 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:20:38,766 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:20:38,767 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:20:38,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:20:38,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:20:38,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:20:38,782 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 08:20:46,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:20:46,107 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 08:20:46,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 08:20:46,110 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2018-09-19 08:20:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:20:46,131 INFO L225 Difference]: With dead ends: 622 [2018-09-19 08:20:46,132 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 08:20:46,141 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:20:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 08:20:46,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 08:20:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 08:20:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 08:20:46,233 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 126 [2018-09-19 08:20:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:20:46,234 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 08:20:46,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:20:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 08:20:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-19 08:20:46,241 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:20:46,241 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:20:46,242 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:20:46,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1703080305, now seen corresponding path program 1 times [2018-09-19 08:20:46,243 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:20:46,243 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-19 08:20:46,244 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [679], [681], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:20:46,254 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:20:46,255 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:21:21,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:21:21,205 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 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 08:21:21,241 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:21:23,744 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 81.24% of their original sizes. [2018-09-19 08:21:23,745 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:21:24,547 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:21:24,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:21:24,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:21:24,548 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:21:24,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:21:24,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:21:24,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:21:24,550 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 08:21:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:21:31,560 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 08:21:31,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:21:31,563 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-09-19 08:21:31,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:21:31,571 INFO L225 Difference]: With dead ends: 910 [2018-09-19 08:21:31,571 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 08:21:31,575 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:21:31,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 08:21:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 08:21:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 08:21:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 08:21:31,616 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 136 [2018-09-19 08:21:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:21:31,617 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 08:21:31,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:21:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 08:21:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-19 08:21:31,621 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:21:31,621 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:21:31,622 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:21:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1962457495, now seen corresponding path program 1 times [2018-09-19 08:21:31,622 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:21:31,622 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-19 08:21:31,623 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [679], [681], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:21:31,632 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:21:31,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:22:08,743 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:22:08,744 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 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 08:22:08,750 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:22:10,620 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 81.22% of their original sizes. [2018-09-19 08:22:10,621 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:22:11,386 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:22:11,387 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:22:11,387 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:22:11,387 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:22:11,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:22:11,388 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:22:11,388 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:22:11,389 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 08:22:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:22:18,713 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 08:22:18,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 08:22:18,716 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 140 [2018-09-19 08:22:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:22:18,722 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 08:22:18,722 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 08:22:18,725 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 08:22:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 08:22:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 08:22:18,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 08:22:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 08:22:18,761 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 140 [2018-09-19 08:22:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:22:18,762 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 08:22:18,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:22:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 08:22:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-19 08:22:18,766 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:22:18,767 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:22:18,767 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:22:18,767 INFO L82 PathProgramCache]: Analyzing trace with hash 527929500, now seen corresponding path program 1 times [2018-09-19 08:22:18,768 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:22:18,768 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-09-19 08:22:18,768 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [679], [681], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:22:18,774 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:22:18,775 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:23:13,453 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:23:13,454 INFO L272 AbstractInterpreter]: Visited 130 different actions 382 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 08:23:13,471 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:23:15,380 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 81.24% of their original sizes. [2018-09-19 08:23:15,380 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:23:16,051 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:23:16,052 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:23:16,053 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:23:16,053 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:23:16,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:23:16,054 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:23:16,054 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:23:16,055 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 08:23:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:23:24,456 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 08:23:24,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:23:24,457 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 145 [2018-09-19 08:23:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:23:24,463 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 08:23:24,464 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 08:23:24,467 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 08:23:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 08:23:24,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 08:23:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 08:23:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 08:23:24,512 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 145 [2018-09-19 08:23:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:23:24,512 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 08:23:24,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:23:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 08:23:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-09-19 08:23:24,517 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:23:24,517 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:23:24,518 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:23:24,518 INFO L82 PathProgramCache]: Analyzing trace with hash -907189579, now seen corresponding path program 1 times [2018-09-19 08:23:24,518 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:23:24,519 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-09-19 08:23:24,519 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [679], [681], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:23:24,524 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:23:24,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:24:35,361 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:24:35,361 INFO L272 AbstractInterpreter]: Visited 131 different actions 524 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 08:24:35,369 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:24:37,315 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 81.21% of their original sizes. [2018-09-19 08:24:37,315 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:24:38,026 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:24:38,026 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:24:38,026 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:24:38,027 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:24:38,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:24:38,027 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:24:38,027 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:24:38,028 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 08:24:41,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 08:24:41,864 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:24:41,870 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:24:41,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:24:41 BoogieIcfgContainer [2018-09-19 08:24:41,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:24:41,871 INFO L168 Benchmark]: Toolchain (without parser) took 270017.89 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -172.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 08:24:41,873 INFO L168 Benchmark]: CDTParser took 0.28 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 08:24:41,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:24:41,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.17 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 08:24:41,875 INFO L168 Benchmark]: Boogie Preprocessor took 206.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -824.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:24:41,876 INFO L168 Benchmark]: RCFGBuilder took 3350.82 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: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:24:41,877 INFO L168 Benchmark]: TraceAbstraction took 265579.13 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 547.9 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 503.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 08:24:41,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 772.93 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 100.17 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 206.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -824.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3350.82 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: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265579.13 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 547.9 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 503.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 529]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 529). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 24 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (368 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 265.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 33.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 950 SDtfs, 4864 SDslu, 1208 SDs, 0 SdLazy, 6792 SolverSat, 930 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 765 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 7.0s 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, 216.2s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9940756696331463 AbsIntWeakeningRatio, 0.20970042796005706 AbsIntAvgWeakeningVarsNumRemoved, 2419.5106990014265 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_label17_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-24-41-899.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label17_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-24-41-899.csv Completed graceful shutdown