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_label58_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:31:43,416 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:31:43,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:31:43,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:31:43,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:31:43,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:31:43,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:31:43,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:31:43,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:31:43,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:31:43,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:31:43,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:31:43,444 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:31:43,445 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:31:43,446 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:31:43,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:31:43,448 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:31:43,450 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:31:43,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:31:43,454 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:31:43,455 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:31:43,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:31:43,459 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:31:43,459 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:31:43,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:31:43,460 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:31:43,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:31:43,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:31:43,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:31:43,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:31:43,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:31:43,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:31:43,468 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 08:31:43,484 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:31:43,485 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:31:43,486 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:31:43,486 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:31:43,486 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:31:43,486 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:31:43,487 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:31:43,487 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:31:43,487 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:31:43,487 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:31:43,487 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:31:43,488 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:31:43,488 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:31:43,489 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:31:43,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:31:43,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:31:43,489 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:31:43,489 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:31:43,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:31:43,490 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:31:43,490 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:31:43,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:31:43,490 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:31:43,491 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:31:43,491 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:31:43,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:31:43,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:31:43,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:31:43,492 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:31:43,493 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:31:43,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:31:43,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:31:43,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:31:43,562 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:31:43,563 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:31:43,563 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label58_true-unreach-call_false-termination.c [2018-09-19 08:31:43,948 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ea604f/91524098052c49589c5355d4dd68a3a7/FLAGef9fb0f85 [2018-09-19 08:31:44,272 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:31:44,273 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label58_true-unreach-call_false-termination.c [2018-09-19 08:31:44,290 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ea604f/91524098052c49589c5355d4dd68a3a7/FLAGef9fb0f85 [2018-09-19 08:31:44,308 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ea604f/91524098052c49589c5355d4dd68a3a7 [2018-09-19 08:31:44,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:31:44,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:31:44,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:31:44,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:31:44,341 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:31:44,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:31:44" (1/1) ... [2018-09-19 08:31:44,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ef8fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:44, skipping insertion in model container [2018-09-19 08:31:44,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:31:44" (1/1) ... [2018-09-19 08:31:44,360 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:31:44,858 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:31:44,878 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:31:45,032 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:31:45,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45 WrapperNode [2018-09-19 08:31:45,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:31:45,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:31:45,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:31:45,089 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:31:45,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:31:45,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:31:45,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:31:45,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:31:45,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (1/1) ... [2018-09-19 08:31:45,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:31:45,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:31:45,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:31:45,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:31:45,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (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 08:31:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:31:45,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:31:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:31:45,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:31:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:31:45,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:31:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:31:45,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:31:49,229 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:31:49,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:31:49 BoogieIcfgContainer [2018-09-19 08:31:49,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:31:49,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:31:49,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:31:49,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:31:49,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:31:44" (1/3) ... [2018-09-19 08:31:49,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f556b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:31:49, skipping insertion in model container [2018-09-19 08:31:49,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:31:45" (2/3) ... [2018-09-19 08:31:49,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f556b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:31:49, skipping insertion in model container [2018-09-19 08:31:49,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:31:49" (3/3) ... [2018-09-19 08:31:49,259 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label58_true-unreach-call_false-termination.c [2018-09-19 08:31:49,273 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:31:49,288 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:31:49,366 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:31:49,367 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:31:49,367 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:31:49,367 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:31:49,368 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:31:49,368 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:31:49,368 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:31:49,368 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:31:49,368 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:31:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 08:31:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-09-19 08:31:49,430 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:31:49,433 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] [2018-09-19 08:31:49,434 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:31:49,443 INFO L82 PathProgramCache]: Analyzing trace with hash 361697296, now seen corresponding path program 1 times [2018-09-19 08:31:49,446 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:31:49,448 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 111 with the following transitions: [2018-09-19 08:31:49,452 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], [551], [553], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 08:31:49,563 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:31:49,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:32:08,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:32:08,233 INFO L272 AbstractInterpreter]: Visited 109 different actions 109 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 08:32:08,266 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:32:11,232 INFO L232 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 80.94% of their original sizes. [2018-09-19 08:32:11,232 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:32:12,369 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:32:12,371 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:32:12,371 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:32:12,372 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:32:12,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:32:12,387 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:32:12,388 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:32:12,391 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 08:32:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:32:21,019 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 08:32:21,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 08:32:21,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2018-09-19 08:32:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:32:21,044 INFO L225 Difference]: With dead ends: 622 [2018-09-19 08:32:21,044 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 08:32:21,052 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:32:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 08:32:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 08:32:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 08:32:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 08:32:21,133 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 110 [2018-09-19 08:32:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:32:21,134 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 08:32:21,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:32:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 08:32:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-19 08:32:21,142 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:32:21,142 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] [2018-09-19 08:32:21,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:32:21,143 INFO L82 PathProgramCache]: Analyzing trace with hash 142681137, now seen corresponding path program 1 times [2018-09-19 08:32:21,143 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:32:21,144 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-09-19 08:32:21,144 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], [551], [553], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:32:21,152 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:32:21,153 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:32:53,709 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:32:53,710 INFO L272 AbstractInterpreter]: Visited 113 different actions 220 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 08:32:53,749 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:32:55,854 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 80.96% of their original sizes. [2018-09-19 08:32:55,855 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:32:56,698 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:32:56,699 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:32:56,699 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:32:56,699 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:32:56,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:32:56,701 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:32:56,701 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:32:56,701 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 08:33:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:33:03,837 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 08:33:03,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:33:03,841 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 120 [2018-09-19 08:33:03,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:33:03,848 INFO L225 Difference]: With dead ends: 910 [2018-09-19 08:33:03,848 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 08:33:03,854 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:33:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 08:33:03,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 08:33:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 08:33:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 08:33:03,898 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 120 [2018-09-19 08:33:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:33:03,899 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 08:33:03,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:33:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 08:33:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-19 08:33:03,906 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:33:03,907 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] [2018-09-19 08:33:03,907 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:33:03,907 INFO L82 PathProgramCache]: Analyzing trace with hash -2072090327, now seen corresponding path program 1 times [2018-09-19 08:33:03,908 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:33:03,908 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-09-19 08:33:03,908 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], [551], [553], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:33:03,920 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:33:03,924 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:33:37,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:33:37,642 INFO L272 AbstractInterpreter]: Visited 113 different actions 220 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 08:33:37,680 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:33:39,412 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 80.94% of their original sizes. [2018-09-19 08:33:39,413 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:33:40,052 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:33:40,052 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:33:40,053 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:33:40,053 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:33:40,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:33:40,054 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:33:40,054 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:33:40,054 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 08:33:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:33:47,263 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 08:33:47,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 08:33:47,264 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 124 [2018-09-19 08:33:47,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:33:47,270 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 08:33:47,270 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 08:33:47,273 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 08:33:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 08:33:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 08:33:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 08:33:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 08:33:47,314 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 124 [2018-09-19 08:33:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:33:47,315 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 08:33:47,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:33:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 08:33:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 08:33:47,318 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:33:47,319 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] [2018-09-19 08:33:47,319 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:33:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -80250532, now seen corresponding path program 1 times [2018-09-19 08:33:47,319 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:33:47,320 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-19 08:33:47,320 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], [551], [553], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:33:47,325 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:33:47,325 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:34:37,951 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:34:37,952 INFO L272 AbstractInterpreter]: Visited 114 different actions 334 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 08:34:37,963 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:34:39,484 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 80.97% of their original sizes. [2018-09-19 08:34:39,484 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:34:40,113 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:34:40,114 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:34:40,114 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:34:40,114 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:34:40,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:34:40,115 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:34:40,115 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:34:40,116 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 08:34:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:34:48,260 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 08:34:48,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:34:48,262 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 129 [2018-09-19 08:34:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:34:48,269 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 08:34:48,269 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 08:34:48,273 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 08:34:48,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 08:34:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 08:34:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 08:34:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 08:34:48,323 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 129 [2018-09-19 08:34:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:34:48,324 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 08:34:48,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:34:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 08:34:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-19 08:34:48,329 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:34:48,330 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] [2018-09-19 08:34:48,330 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:34:48,331 INFO L82 PathProgramCache]: Analyzing trace with hash 266247541, now seen corresponding path program 1 times [2018-09-19 08:34:48,331 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:34:48,331 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-19 08:34:48,332 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], [551], [553], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:34:48,338 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:34:48,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:35:58,772 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:35:58,773 INFO L272 AbstractInterpreter]: Visited 115 different actions 460 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 08:35:58,781 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:36:00,485 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 80.97% of their original sizes. [2018-09-19 08:36:00,485 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:36:01,204 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:36:01,204 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:36:01,204 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:36:01,205 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:36:01,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:36:01,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:36:01,206 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:36:01,206 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 08:36:09,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:36:09,932 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:36:09,939 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:36:09,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:36:09 BoogieIcfgContainer [2018-09-19 08:36:09,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:36:09,941 INFO L168 Benchmark]: Toolchain (without parser) took 265618.60 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -635.1 MB). Peak memory consumption was 868.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:36:09,943 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:36:09,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.47 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 08:36:09,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.72 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 08:36:09,945 INFO L168 Benchmark]: Boogie Preprocessor took 287.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -835.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:36:09,946 INFO L168 Benchmark]: RCFGBuilder took 3750.30 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: 111.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:36:09,946 INFO L168 Benchmark]: TraceAbstraction took 260702.02 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 749.7 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 796.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:36:09,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.47 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 105.72 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 287.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -835.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3750.30 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: 111.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260702.02 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 749.7 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 796.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 481]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 481). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 25 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (1047 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 260.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 39.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1015 SDtfs, 5396 SDslu, 1302 SDs, 0 SdLazy, 7910 SolverSat, 999 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.3s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 686 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 7.2s 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, 206.2s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.99331247087413 AbsIntWeakeningRatio, 0.23671497584541062 AbsIntAvgWeakeningVarsNumRemoved, 2406.5652173913045 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_label58_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-36-09-965.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label58_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-36-09-965.csv Completed graceful shutdown