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/Problem02_label36_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-12 00:44:12,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-12 00:44:12,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-12 00:44:12,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-12 00:44:12,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-12 00:44:12,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-12 00:44:12,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-12 00:44:12,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-12 00:44:12,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-12 00:44:12,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-12 00:44:12,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-12 00:44:12,277 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-12 00:44:12,278 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-12 00:44:12,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-12 00:44:12,280 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-12 00:44:12,281 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-12 00:44:12,281 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-12 00:44:12,283 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-12 00:44:12,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-12 00:44:12,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-12 00:44:12,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-12 00:44:12,290 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-12 00:44:12,292 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-12 00:44:12,292 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-12 00:44:12,293 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-12 00:44:12,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-12 00:44:12,295 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-12 00:44:12,295 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-12 00:44:12,296 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-12 00:44:12,298 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-12 00:44:12,298 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-12 00:44:12,299 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-12 00:44:12,304 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 [2018-09-12 00:44:12,336 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-12 00:44:12,337 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-12 00:44:12,338 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-12 00:44:12,339 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-12 00:44:12,339 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-12 00:44:12,339 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-12 00:44:12,339 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-12 00:44:12,342 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-12 00:44:12,343 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-12 00:44:12,343 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-12 00:44:12,343 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-12 00:44:12,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-12 00:44:12,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-12 00:44:12,344 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-12 00:44:12,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-12 00:44:12,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-12 00:44:12,346 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-12 00:44:12,346 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-12 00:44:12,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-12 00:44:12,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-12 00:44:12,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-12 00:44:12,347 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-12 00:44:12,347 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-12 00:44:12,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-12 00:44:12,347 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-12 00:44:12,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-12 00:44:12,349 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-12 00:44:12,349 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-12 00:44:12,349 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-12 00:44:12,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-12 00:44:12,350 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-12 00:44:12,350 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-12 00:44:12,350 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-12 00:44:12,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-12 00:44:12,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-12 00:44:12,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-12 00:44:12,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-12 00:44:12,416 INFO L276 PluginConnector]: CDTParser initialized [2018-09-12 00:44:12,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label36_true-unreach-call_false-termination.c [2018-09-12 00:44:12,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb029e829/5e0276d258ff4ff2b98d8f338fb4da0e/FLAG2792c0f33 [2018-09-12 00:44:13,006 INFO L276 CDTParser]: Found 1 translation units. [2018-09-12 00:44:13,007 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label36_true-unreach-call_false-termination.c [2018-09-12 00:44:13,027 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb029e829/5e0276d258ff4ff2b98d8f338fb4da0e/FLAG2792c0f33 [2018-09-12 00:44:13,048 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb029e829/5e0276d258ff4ff2b98d8f338fb4da0e [2018-09-12 00:44:13,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-12 00:44:13,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-12 00:44:13,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-12 00:44:13,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-12 00:44:13,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-12 00:44:13,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:13,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bf522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13, skipping insertion in model container [2018-09-12 00:44:13,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:13,346 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-12 00:44:13,652 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-12 00:44:13,675 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-12 00:44:13,806 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-12 00:44:13,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13 WrapperNode [2018-09-12 00:44:13,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-12 00:44:13,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-12 00:44:13,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-12 00:44:13,859 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-12 00:44:13,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:13,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:13,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-12 00:44:13,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-12 00:44:13,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-12 00:44:13,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-12 00:44:14,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (1/1) ... [2018-09-12 00:44:14,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-12 00:44:14,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-12 00:44:14,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-12 00:44:14,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-12 00:44:14,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (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 [2018-09-12 00:44:14,315 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-12 00:44:14,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-12 00:44:14,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-12 00:44:14,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-12 00:44:14,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-12 00:44:14,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-12 00:44:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-12 00:44:14,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-12 00:44:17,879 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-12 00:44:17,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:44:17 BoogieIcfgContainer [2018-09-12 00:44:17,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-12 00:44:17,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-12 00:44:17,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-12 00:44:17,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-12 00:44:17,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:44:13" (1/3) ... [2018-09-12 00:44:17,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0eb633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:44:17, skipping insertion in model container [2018-09-12 00:44:17,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:44:13" (2/3) ... [2018-09-12 00:44:17,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0eb633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:44:17, skipping insertion in model container [2018-09-12 00:44:17,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:44:17" (3/3) ... [2018-09-12 00:44:17,894 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label36_true-unreach-call_false-termination.c [2018-09-12 00:44:17,905 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-12 00:44:17,916 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-12 00:44:17,986 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-12 00:44:17,986 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-12 00:44:17,987 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-12 00:44:17,987 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-12 00:44:17,987 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-12 00:44:17,987 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-12 00:44:17,987 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-12 00:44:17,988 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-12 00:44:17,988 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-12 00:44:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-12 00:44:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-12 00:44:18,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-12 00:44:18,054 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] [2018-09-12 00:44:18,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-12 00:44:18,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1752708045, now seen corresponding path program 1 times [2018-09-12 00:44:18,065 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-12 00:44:18,066 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-12 00:44:18,070 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [51], [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], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [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], [713], [721], [729], [737], [745], [753], [761], [769], [777], [781], [783], [862], [863], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-12 00:44:18,138 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-12 00:44:18,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown