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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:21:10,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:21:10,367 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:21:10,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:21:10,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:21:10,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:21:10,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:21:10,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:21:10,396 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:21:10,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:21:10,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:21:10,401 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:21:10,403 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:21:10,404 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:21:10,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:21:10,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:21:10,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:21:10,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:21:10,431 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:21:10,433 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:21:10,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:21:10,438 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:21:10,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:21:10,443 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:21:10,443 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:21:10,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:21:10,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:21:10,446 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:21:10,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:21:10,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:21:10,450 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:21:10,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:21:10,453 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:21:10,453 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:21:10,455 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:21:10,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:21:10,457 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:21:10,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:21:10,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:21:10,483 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:21:10,483 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:21:10,484 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:21:10,484 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:21:10,484 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:21:10,484 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:21:10,484 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:21:10,485 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:21:10,485 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:21:10,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:21:10,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:21:10,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:21:10,486 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:21:10,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:21:10,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:21:10,487 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:21:10,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:21:10,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:21:10,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:21:10,488 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:21:10,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:21:10,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:21:10,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:21:10,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:21:10,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:21:10,489 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:21:10,489 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:21:10,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:21:10,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:21:10,490 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:21:10,490 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:21:10,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:21:10,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:21:10,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:21:10,578 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:21:10,579 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:21:10,579 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label03_true-unreach-call.c [2018-09-15 21:21:10,941 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9bf688a/d52792625d94441a906bd84f07e0b796/FLAG6986771f1 [2018-09-15 21:21:11,355 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:21:11,359 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label03_true-unreach-call.c [2018-09-15 21:21:11,381 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9bf688a/d52792625d94441a906bd84f07e0b796/FLAG6986771f1 [2018-09-15 21:21:11,402 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9bf688a/d52792625d94441a906bd84f07e0b796 [2018-09-15 21:21:11,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:21:11,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:21:11,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:21:11,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:21:11,428 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:21:11,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:21:11" (1/1) ... [2018-09-15 21:21:11,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cedc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:11, skipping insertion in model container [2018-09-15 21:21:11,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:21:11" (1/1) ... [2018-09-15 21:21:11,443 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:21:12,213 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:21:12,233 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:21:12,545 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:21:12,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12 WrapperNode [2018-09-15 21:21:12,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:21:12,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:21:12,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:21:12,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:21:12,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:12,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:12,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:21:12,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:21:12,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:21:12,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:21:13,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... [2018-09-15 21:21:13,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:21:13,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:21:13,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:21:13,216 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:21:13,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:21:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:21:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:21:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 21:21:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 21:21:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:21:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:21:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:21:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:21:19,193 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:21:19,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:21:19 BoogieIcfgContainer [2018-09-15 21:21:19,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:21:19,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:21:19,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:21:19,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:21:19,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:21:11" (1/3) ... [2018-09-15 21:21:19,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3da7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:21:19, skipping insertion in model container [2018-09-15 21:21:19,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:21:12" (2/3) ... [2018-09-15 21:21:19,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3da7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:21:19, skipping insertion in model container [2018-09-15 21:21:19,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:21:19" (3/3) ... [2018-09-15 21:21:19,211 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label03_true-unreach-call.c [2018-09-15 21:21:19,227 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:21:19,241 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:21:19,326 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:21:19,327 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:21:19,327 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:21:19,328 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:21:19,328 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:21:19,328 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:21:19,328 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:21:19,328 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:21:19,328 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:21:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-09-15 21:21:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-15 21:21:19,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:21:19,427 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:21:19,430 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:21:19,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1304680716, now seen corresponding path program 1 times [2018-09-15 21:21:19,443 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:21:19,446 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-09-15 21:21:19,450 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [829], [831], [1161], [1165], [1171], [1175], [1182], [1183], [1184], [1186] [2018-09-15 21:21:19,584 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:21:19,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)