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_label35_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:52:14,228 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:52:14,230 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:52:14,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:52:14,242 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:52:14,243 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:52:14,244 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:52:14,246 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:52:14,248 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:52:14,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:52:14,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:52:14,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:52:14,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:52:14,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:52:14,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:52:14,254 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:52:14,255 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:52:14,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:52:14,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:52:14,260 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:52:14,261 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:52:14,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:52:14,265 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:52:14,265 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:52:14,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:52:14,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:52:14,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:52:14,269 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:52:14,270 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:52:14,271 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:52:14,271 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:52:14,272 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 01:52:14,272 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 01:52:14,272 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 01:52:14,274 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 01:52:14,274 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 01:52:14,275 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 01:52:14,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:52:14,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:52:14,291 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:52:14,292 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:52:14,292 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:52:14,292 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:52:14,292 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:52:14,293 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:52:14,293 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:52:14,293 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:52:14,293 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:52:14,293 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:52:14,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:52:14,294 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:52:14,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:52:14,295 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:52:14,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:52:14,295 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:52:14,295 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:52:14,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:52:14,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:52:14,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:52:14,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:52:14,297 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:52:14,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:52:14,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:52:14,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:52:14,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:52:14,298 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:52:14,298 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:52:14,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:52:14,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:52:14,298 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:52:14,299 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:52:14,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:52:14,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:52:14,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:52:14,363 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:52:14,363 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:52:14,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label35_true-unreach-call_false-termination.c [2018-09-19 01:52:14,726 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958a98b06/1aff51ee428c4870a1ff477af72923f8/FLAGd6b2120da [2018-09-19 01:52:14,986 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:52:14,987 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label35_true-unreach-call_false-termination.c [2018-09-19 01:52:15,014 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958a98b06/1aff51ee428c4870a1ff477af72923f8/FLAGd6b2120da [2018-09-19 01:52:15,046 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958a98b06/1aff51ee428c4870a1ff477af72923f8 [2018-09-19 01:52:15,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:52:15,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:52:15,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:52:15,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:52:15,074 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:52:15,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd6d764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15, skipping insertion in model container [2018-09-19 01:52:15,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,092 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:52:15,600 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:52:15,617 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:52:15,762 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:52:15,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15 WrapperNode [2018-09-19 01:52:15,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:52:15,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:52:15,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:52:15,801 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:52:15,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:52:15,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:52:15,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:52:15,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:52:15,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:15,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:16,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:16,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:16,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... [2018-09-19 01:52:16,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:52:16,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:52:16,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:52:16,102 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:52:16,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:52:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:52:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:52:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:52:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:52:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:52:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:52:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:52:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:52:19,482 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:52:19,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:52:19 BoogieIcfgContainer [2018-09-19 01:52:19,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:52:19,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:52:19,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:52:19,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:52:19,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:52:15" (1/3) ... [2018-09-19 01:52:19,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33be0539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:52:19, skipping insertion in model container [2018-09-19 01:52:19,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:52:15" (2/3) ... [2018-09-19 01:52:19,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33be0539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:52:19, skipping insertion in model container [2018-09-19 01:52:19,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:52:19" (3/3) ... [2018-09-19 01:52:19,496 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label35_true-unreach-call_false-termination.c [2018-09-19 01:52:19,508 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:52:19,521 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:52:19,590 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:52:19,591 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:52:19,591 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:52:19,591 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:52:19,591 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:52:19,592 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:52:19,592 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:52:19,592 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:52:19,593 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:52:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:52:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-19 01:52:19,648 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:52:19,650 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] [2018-09-19 01:52:19,651 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:52:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1054680041, now seen corresponding path program 1 times [2018-09-19 01:52:19,659 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:52:19,660 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-09-19 01:52:19,664 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], [479], [481], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:52:19,737 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:52:19,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:52:34,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:52:34,974 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:52:34,993 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:52:37,452 INFO L232 lantSequenceWeakener]: Weakened 99 states. On average, predicates are now at 80.72% of their original sizes. [2018-09-19 01:52:37,453 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:52:38,387 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:52:38,390 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:52:38,390 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:52:38,391 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:52:38,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:52:38,404 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:52:38,405 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:52:38,407 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:52:45,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:52:45,559 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:52:45,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:52:45,561 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2018-09-19 01:52:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:52:45,579 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:52:45,579 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:52:45,586 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 104 GetRequests, 92 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 01:52:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:52:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:52:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:52:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:52:45,662 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 101 [2018-09-19 01:52:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:52:45,663 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:52:45,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:52:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:52:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-19 01:52:45,669 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:52:45,670 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] [2018-09-19 01:52:45,670 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:52:45,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2145358122, now seen corresponding path program 1 times [2018-09-19 01:52:45,671 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:52:45,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-09-19 01:52:45,671 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], [479], [481], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:52:45,678 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:52:45,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:53:11,808 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:53:11,809 INFO L272 AbstractInterpreter]: Visited 104 different actions 202 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 01:53:11,843 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:53:13,757 INFO L232 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 80.76% of their original sizes. [2018-09-19 01:53:13,757 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:53:14,884 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:53:14,885 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:53:14,885 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:53:14,885 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:53:14,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:53:14,887 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:53:14,887 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:53:14,887 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:53:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:53:22,775 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:53:22,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:53:22,776 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 111 [2018-09-19 01:53:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:53:22,781 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:53:22,782 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:53:22,786 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:53:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:53:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:53:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:53:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:53:22,828 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 111 [2018-09-19 01:53:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:53:22,829 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:53:22,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:53:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:53:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-19 01:53:22,833 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:53:22,834 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] [2018-09-19 01:53:22,834 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:53:22,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1883976414, now seen corresponding path program 1 times [2018-09-19 01:53:22,834 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:53:22,835 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-19 01:53:22,835 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], [479], [481], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:53:22,840 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:53:22,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:53:49,169 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:53:49,170 INFO L272 AbstractInterpreter]: Visited 104 different actions 202 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 01:53:49,176 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:53:51,234 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 80.75% of their original sizes. [2018-09-19 01:53:51,234 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:53:52,511 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:53:52,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:53:52,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:53:52,512 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:53:52,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:53:52,512 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:53:52,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:53:52,513 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:54:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:54:01,872 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:54:01,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:54:01,876 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 115 [2018-09-19 01:54:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:54:01,881 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:54:01,881 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:54:01,883 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 102 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 01:54:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:54:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:54:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:54:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:54:01,922 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 115 [2018-09-19 01:54:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:54:01,922 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:54:01,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:54:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:54:01,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-19 01:54:01,927 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:54:01,928 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] [2018-09-19 01:54:01,928 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:54:01,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1572638027, now seen corresponding path program 1 times [2018-09-19 01:54:01,928 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:54:01,929 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-09-19 01:54:01,929 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], [479], [481], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:54:01,937 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:54:01,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:54:41,082 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:54:41,083 INFO L272 AbstractInterpreter]: Visited 105 different actions 307 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 01:54:41,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:54:42,899 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 80.79% of their original sizes. [2018-09-19 01:54:42,899 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:54:43,610 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:54:43,611 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:54:43,611 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:54:43,611 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:54:43,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:54:43,612 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:54:43,612 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:54:43,613 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:54:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:54:54,501 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:54:54,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:54:54,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 120 [2018-09-19 01:54:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:54:54,507 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:54:54,508 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:54:54,510 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 107 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 01:54:54,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:54:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:54:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:54:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:54:54,547 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 120 [2018-09-19 01:54:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:54:54,548 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:54:54,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:54:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:54:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 01:54:54,552 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:54:54,552 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] [2018-09-19 01:54:54,552 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:54:54,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2110998254, now seen corresponding path program 1 times [2018-09-19 01:54:54,553 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:54:54,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 01:54:54,553 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], [479], [481], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:54:54,558 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:54:54,558 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:55:49,087 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:55:49,087 INFO L272 AbstractInterpreter]: Visited 106 different actions 424 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 01:55:49,099 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:55:50,884 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 80.81% of their original sizes. [2018-09-19 01:55:50,885 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:55:51,579 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:55:51,580 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:55:51,580 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:55:51,580 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:55:51,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:55:51,581 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:55:51,581 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:55:51,582 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. [2018-09-19 01:55:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:55:58,275 INFO L93 Difference]: Finished difference Result 2074 states and 2748 transitions. [2018-09-19 01:55:58,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:55:58,276 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 134 [2018-09-19 01:55:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:55:58,282 INFO L225 Difference]: With dead ends: 2074 [2018-09-19 01:55:58,282 INFO L226 Difference]: Without dead ends: 1194 [2018-09-19 01:55:58,285 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 121 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 01:55:58,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2018-09-19 01:55:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1159. [2018-09-19 01:55:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2018-09-19 01:55:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1430 transitions. [2018-09-19 01:55:58,329 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1430 transitions. Word has length 134 [2018-09-19 01:55:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:55:58,329 INFO L480 AbstractCegarLoop]: Abstraction has 1159 states and 1430 transitions. [2018-09-19 01:55:58,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:55:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1430 transitions. [2018-09-19 01:55:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-19 01:55:58,333 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:55:58,333 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] [2018-09-19 01:55:58,333 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:55:58,334 INFO L82 PathProgramCache]: Analyzing trace with hash -157437850, now seen corresponding path program 1 times [2018-09-19 01:55:58,334 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:55:58,334 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-19 01:55:58,334 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], [479], [481], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:55:58,338 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:55:58,338 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:56:40,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:56:40,772 INFO L272 AbstractInterpreter]: Visited 105 different actions 307 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 01:56:40,781 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 01:56:42,580 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 80.76% of their original sizes. [2018-09-19 01:56:42,581 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:56:42,598 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:56:42,602 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:56:42,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:56:42 BoogieIcfgContainer [2018-09-19 01:56:42,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:56:42,604 INFO L168 Benchmark]: Toolchain (without parser) took 267544.56 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 226.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:56:42,606 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:56:42,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.44 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 01:56:42,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.75 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 01:56:42,608 INFO L168 Benchmark]: Boogie Preprocessor took 212.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.9 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. [2018-09-19 01:56:42,609 INFO L168 Benchmark]: RCFGBuilder took 3384.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.3 MB). Peak memory consumption was 106.3 MB. Max. memory is 7.1 GB. [2018-09-19 01:56:42,610 INFO L168 Benchmark]: TraceAbstraction took 263115.58 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 478.2 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -318.8 MB). Peak memory consumption was 159.3 MB. Max. memory is 7.1 GB. [2018-09-19 01:56:42,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.44 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 87.75 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 212.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.9 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3384.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.3 MB). Peak memory consumption was 106.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263115.58 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 478.2 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -318.8 MB). Peak memory consumption was 159.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 454]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 454). Cancelled while BasicCegarLoop was analyzing trace of length 139 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 263.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 42.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1131 SDtfs, 5050 SDslu, 2331 SDs, 0 SdLazy, 10531 SolverSat, 1107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 641 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 8.0s 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, 204.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9928765962389665 AbsIntWeakeningRatio, 0.25245441795231416 AbsIntAvgWeakeningVarsNumRemoved, 2427.6788218793827 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_label35_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-56-42-630.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label35_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-56-42-630.csv Completed graceful shutdown