java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:56:44,977 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:56:44,980 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:56:44,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:56:44,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:56:44,994 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:56:44,995 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:56:44,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:56:44,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:56:44,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:56:45,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:56:45,000 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:56:45,001 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:56:45,002 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:56:45,003 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:56:45,004 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:56:45,005 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:56:45,007 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:56:45,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:56:45,010 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:56:45,011 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:56:45,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:56:45,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:56:45,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:56:45,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:56:45,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:56:45,022 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:56:45,022 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:56:45,023 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:56:45,027 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:56:45,027 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:56:45,028 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 01:56:45,028 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 01:56:45,029 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 01:56:45,030 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 01:56:45,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 01:56:45,033 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:56:45,063 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:56:45,063 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:56:45,064 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:56:45,064 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:56:45,064 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:56:45,065 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:56:45,065 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:56:45,065 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:56:45,065 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:56:45,065 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:56:45,065 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:56:45,066 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:56:45,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:56:45,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:56:45,067 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:56:45,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:56:45,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:56:45,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:56:45,068 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:56:45,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:56:45,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:56:45,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:56:45,069 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:56:45,069 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:56:45,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:56:45,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:56:45,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:56:45,071 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:56:45,071 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:56:45,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:56:45,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:56:45,072 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:56:45,072 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:56:45,072 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:56:45,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:56:45,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:56:45,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:56:45,169 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:56:45,169 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:56:45,170 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54_true-unreach-call_false-termination.c [2018-09-19 01:56:45,543 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf879bdb/0e8f8ed2cb0b47698e5189856f65d63c/FLAGe12965a91 [2018-09-19 01:56:45,808 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:56:45,809 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label54_true-unreach-call_false-termination.c [2018-09-19 01:56:45,826 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf879bdb/0e8f8ed2cb0b47698e5189856f65d63c/FLAGe12965a91 [2018-09-19 01:56:45,840 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf879bdb/0e8f8ed2cb0b47698e5189856f65d63c [2018-09-19 01:56:45,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:56:45,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:56:45,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:56:45,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:56:45,862 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:56:45,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:56:45" (1/1) ... [2018-09-19 01:56:45,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4febdb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:45, skipping insertion in model container [2018-09-19 01:56:45,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:56:45" (1/1) ... [2018-09-19 01:56:45,878 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:56:46,384 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:56:46,406 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:56:46,546 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:56:46,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46 WrapperNode [2018-09-19 01:56:46,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:56:46,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:56:46,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:56:46,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:56:46,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:56:46,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:56:46,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:56:46,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:56:46,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... [2018-09-19 01:56:46,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:56:46,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:56:46,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:56:46,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:56:46,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:56:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:56:46,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:56:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:56:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:56:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:56:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:56:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:56:46,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:56:50,315 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:56:50,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:56:50 BoogieIcfgContainer [2018-09-19 01:56:50,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:56:50,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:56:50,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:56:50,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:56:50,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:56:45" (1/3) ... [2018-09-19 01:56:50,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51799803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:56:50, skipping insertion in model container [2018-09-19 01:56:50,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:56:46" (2/3) ... [2018-09-19 01:56:50,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51799803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:56:50, skipping insertion in model container [2018-09-19 01:56:50,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:56:50" (3/3) ... [2018-09-19 01:56:50,325 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label54_true-unreach-call_false-termination.c [2018-09-19 01:56:50,336 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:56:50,346 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:56:50,418 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:56:50,419 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:56:50,419 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:56:50,419 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:56:50,420 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:56:50,420 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:56:50,420 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:56:50,420 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:56:50,421 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:56:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:56:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-19 01:56:50,481 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:56:50,483 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] [2018-09-19 01:56:50,484 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:56:50,490 INFO L82 PathProgramCache]: Analyzing trace with hash -410796504, now seen corresponding path program 1 times [2018-09-19 01:56:50,494 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:56:50,495 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-09-19 01:56:50,498 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], [535], [537], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:56:50,595 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:56:50,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:05,386 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:05,388 INFO L272 AbstractInterpreter]: Visited 107 different actions 107 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:57:05,406 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:07,774 INFO L232 lantSequenceWeakener]: Weakened 106 states. On average, predicates are now at 80.9% of their original sizes. [2018-09-19 01:57:07,774 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:08,913 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:08,916 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:08,916 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:57:08,916 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:08,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:57:08,933 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:57:08,934 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:57:08,936 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:57:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:57:15,123 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:57:15,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:57:15,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108 [2018-09-19 01:57:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:57:15,144 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:57:15,144 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:57:15,153 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:57:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:57:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:57:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:57:15,236 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 108 [2018-09-19 01:57:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:57:15,237 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:57:15,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:57:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:57:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-19 01:57:15,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:57:15,245 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] [2018-09-19 01:57:15,246 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:57:15,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1367447927, now seen corresponding path program 1 times [2018-09-19 01:57:15,246 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:57:15,246 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-09-19 01:57:15,247 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], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:57:15,253 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:57:15,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:41,403 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:41,403 INFO L272 AbstractInterpreter]: Visited 111 different actions 216 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:57:41,440 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:43,159 INFO L232 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 80.92% of their original sizes. [2018-09-19 01:57:43,159 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:44,040 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:44,041 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:44,041 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:57:44,041 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:44,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:57:44,043 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:57:44,043 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:44,043 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:57:52,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:57:52,076 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:57:52,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:57:52,078 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 118 [2018-09-19 01:57:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:57:52,085 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:57:52,085 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:57:52,091 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 132 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:57:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:57:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:57:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:57:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:57:52,135 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 118 [2018-09-19 01:57:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:57:52,136 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:57:52,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:57:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:57:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-19 01:57:52,143 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:57:52,144 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] [2018-09-19 01:57:52,144 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:57:52,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1065842303, now seen corresponding path program 1 times [2018-09-19 01:57:52,144 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:57:52,145 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-09-19 01:57:52,145 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], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:57:52,151 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:57:52,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:58:18,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:58:18,905 INFO L272 AbstractInterpreter]: Visited 111 different actions 216 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:58:18,908 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:58:21,144 INFO L232 lantSequenceWeakener]: Weakened 120 states. On average, predicates are now at 80.9% of their original sizes. [2018-09-19 01:58:21,145 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:58:22,395 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:58:22,396 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:58:22,396 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:58:22,396 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:58:22,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:58:22,397 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:58:22,397 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:58:22,397 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:58:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:58:29,342 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:58:29,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:58:29,346 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 122 [2018-09-19 01:58:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:58:29,351 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:58:29,351 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:58:29,354 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 01:58:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:58:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:58:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:58:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:58:29,393 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 122 [2018-09-19 01:58:29,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:58:29,393 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:58:29,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:58:29,394 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:58:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-19 01:58:29,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:58:29,402 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] [2018-09-19 01:58:29,403 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:58:29,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1720584820, now seen corresponding path program 1 times [2018-09-19 01:58:29,403 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:58:29,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-09-19 01:58:29,404 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], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:58:29,410 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:58:29,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:59:09,419 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:59:09,419 INFO L272 AbstractInterpreter]: Visited 112 different actions 328 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:59:09,428 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:59:11,610 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 80.93% of their original sizes. [2018-09-19 01:59:11,610 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:59:12,313 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:59:12,314 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:59:12,314 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:59:12,314 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:59:12,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:59:12,315 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:59:12,315 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:59:12,315 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:59:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:59:23,693 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:59:23,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:59:23,694 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2018-09-19 01:59:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:59:23,700 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:59:23,701 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:59:23,703 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 01:59:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:59:23,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:59:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:59:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:59:23,746 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 127 [2018-09-19 01:59:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:59:23,747 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:59:23,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:59:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:59:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 01:59:23,751 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:59:23,751 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] [2018-09-19 01:59:23,751 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:59:23,752 INFO L82 PathProgramCache]: Analyzing trace with hash -156147507, now seen corresponding path program 1 times [2018-09-19 01:59:23,752 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:59:23,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 01:59:23,752 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], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:59:23,757 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:59:23,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 02:00:15,816 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 02:00:15,817 INFO L272 AbstractInterpreter]: Visited 113 different actions 452 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 02:00:15,824 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 02:00:17,688 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 80.94% of their original sizes. [2018-09-19 02:00:17,688 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 02:00:18,407 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 02:00:18,408 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 02:00:18,408 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 02:00:18,408 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 02:00:18,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 02:00:18,409 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 02:00:18,409 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 02:00:18,410 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. [2018-09-19 02:00:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 02:00:26,381 INFO L93 Difference]: Finished difference Result 2074 states and 2748 transitions. [2018-09-19 02:00:26,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 02:00:26,382 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 141 [2018-09-19 02:00:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 02:00:26,388 INFO L225 Difference]: With dead ends: 2074 [2018-09-19 02:00:26,388 INFO L226 Difference]: Without dead ends: 1194 [2018-09-19 02:00:26,391 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2018-09-19 02:00:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2018-09-19 02:00:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1159. [2018-09-19 02:00:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2018-09-19 02:00:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1430 transitions. [2018-09-19 02:00:26,451 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1430 transitions. Word has length 141 [2018-09-19 02:00:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 02:00:26,452 INFO L480 AbstractCegarLoop]: Abstraction has 1159 states and 1430 transitions. [2018-09-19 02:00:26,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 02:00:26,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1430 transitions. [2018-09-19 02:00:26,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-19 02:00:26,455 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 02:00:26,456 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 02:00:26,456 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 02:00:26,456 INFO L82 PathProgramCache]: Analyzing trace with hash -59817223, now seen corresponding path program 1 times [2018-09-19 02:00:26,457 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 02:00:26,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-09-19 02:00:26,457 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [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], [535], [537], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 02:00:26,463 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 02:00:26,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 02:01:05,803 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 02:01:05,803 INFO L272 AbstractInterpreter]: Visited 112 different actions 328 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 02:01:05,810 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 02:01:07,716 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 80.89% of their original sizes. [2018-09-19 02:01:07,717 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 02:01:08,424 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 02:01:08,424 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 02:01:08,425 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 02:01:08,425 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 02:01:08,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 02:01:08,426 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 02:01:08,426 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 02:01:08,426 INFO L87 Difference]: Start difference. First operand 1159 states and 1430 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 02:01:11,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 02:01:11,142 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 02:01:11,149 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 02:01:11,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 02:01:11 BoogieIcfgContainer [2018-09-19 02:01:11,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 02:01:11,151 INFO L168 Benchmark]: Toolchain (without parser) took 265299.43 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -322.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 02:01:11,153 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 02:01:11,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:11,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 02:01:11,155 INFO L168 Benchmark]: Boogie Preprocessor took 201.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:11,156 INFO L168 Benchmark]: RCFGBuilder took 3424.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:11,156 INFO L168 Benchmark]: TraceAbstraction took 260832.18 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 677.9 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 355.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-19 02:01:11,162 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 736.73 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 97.09 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 201.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3424.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260832.18 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 677.9 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 355.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 475]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 475). Cancelled while BasicCegarLoop was constructing difference of abstraction (1159states) and FLOYD_HOARE automaton (currently 20 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (202 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 260.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 43.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1148 SDtfs, 5034 SDslu, 2168 SDs, 0 SdLazy, 10385 SolverSat, 1108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.8s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 834 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1159occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 199.3s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9932728650574612 AbsIntWeakeningRatio, 0.23841059602649006 AbsIntAvgWeakeningVarsNumRemoved, 2434.4092715231786 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 77 StatesRemovedByMinimization, 5 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_label54_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_02-01-11-175.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label54_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_02-01-11-175.csv Completed graceful shutdown