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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:08:59,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:08:59,199 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:08:59,211 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:08:59,212 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:08:59,213 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:08:59,214 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:08:59,216 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:08:59,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:08:59,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:08:59,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:08:59,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:08:59,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:08:59,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:08:59,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:08:59,224 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:08:59,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:08:59,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:08:59,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:08:59,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:08:59,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:08:59,233 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:08:59,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 13:08:59,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 13:08:59,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 13:08:59,237 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 13:08:59,240 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 13:08:59,241 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 13:08:59,242 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 13:08:59,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 13:08:59,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 13:08:59,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 13:08:59,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 13:08:59,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 13:08:59,252 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 13:08:59,253 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 13:08:59,254 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 13:08:59,284 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:08:59,284 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:08:59,286 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:08:59,286 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:08:59,286 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:08:59,287 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:08:59,287 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:08:59,287 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:08:59,287 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:08:59,288 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:08:59,288 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:08:59,288 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:08:59,289 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:08:59,290 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:08:59,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:08:59,291 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:08:59,291 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:08:59,291 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:08:59,291 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:08:59,291 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:08:59,292 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:08:59,292 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:08:59,292 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:08:59,292 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:08:59,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:08:59,293 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:08:59,293 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:08:59,293 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:08:59,295 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:08:59,295 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:08:59,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:08:59,295 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:08:59,295 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:08:59,296 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:08:59,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:08:59,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:08:59,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:08:59,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:08:59,382 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:08:59,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22_true-unreach-call_false-termination.c [2018-09-15 13:08:59,731 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbb500cb/778c9006520849d58a6fc1ed6b0254a1/FLAG72770883d [2018-09-15 13:08:59,982 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:08:59,983 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label22_true-unreach-call_false-termination.c [2018-09-15 13:09:00,002 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbb500cb/778c9006520849d58a6fc1ed6b0254a1/FLAG72770883d [2018-09-15 13:09:00,017 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbb500cb/778c9006520849d58a6fc1ed6b0254a1 [2018-09-15 13:09:00,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:09:00,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:09:00,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:09:00,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:09:00,041 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:09:00,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b0699e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00, skipping insertion in model container [2018-09-15 13:09:00,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,058 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:09:00,516 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:09:00,536 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:09:00,631 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:09:00,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00 WrapperNode [2018-09-15 13:09:00,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:09:00,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:09:00,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:09:00,674 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:09:00,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:09:00,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:09:00,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:09:00,768 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:09:00,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (1/1) ... [2018-09-15 13:09:00,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:09:00,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:09:00,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:09:00,977 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:09:00,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (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 13:09:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:09:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:09:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 13:09:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 13:09:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:09:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:09:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:09:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:09:04,485 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:09:04,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:09:04 BoogieIcfgContainer [2018-09-15 13:09:04,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:09:04,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:09:04,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:09:04,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:09:04,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:09:00" (1/3) ... [2018-09-15 13:09:04,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286bf854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:09:04, skipping insertion in model container [2018-09-15 13:09:04,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:09:00" (2/3) ... [2018-09-15 13:09:04,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286bf854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:09:04, skipping insertion in model container [2018-09-15 13:09:04,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:09:04" (3/3) ... [2018-09-15 13:09:04,494 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label22_true-unreach-call_false-termination.c [2018-09-15 13:09:04,506 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:09:04,516 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:09:04,577 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:09:04,578 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:09:04,578 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:09:04,578 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:09:04,579 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:09:04,579 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:09:04,580 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:09:04,580 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:09:04,580 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:09:04,619 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-15 13:09:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-15 13:09:04,643 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:09:04,645 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] [2018-09-15 13:09:04,646 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:09:04,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1824627200, now seen corresponding path program 1 times [2018-09-15 13:09:04,654 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:09:04,655 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-15 13:09:04,658 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [709], [711], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-15 13:09:04,713 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:09:04,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)