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/Problem02_label21_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 14:01:13,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 14:01:13,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 14:01:13,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 14:01:13,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 14:01:13,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 14:01:13,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 14:01:13,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 14:01:13,860 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 14:01:13,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 14:01:13,861 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 14:01:13,862 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 14:01:13,862 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 14:01:13,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 14:01:13,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 14:01:13,871 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 14:01:13,872 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 14:01:13,876 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 14:01:13,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 14:01:13,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 14:01:13,886 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 14:01:13,889 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 14:01:13,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 14:01:13,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 14:01:13,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 14:01:13,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 14:01:13,895 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 14:01:13,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 14:01:13,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 14:01:13,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 14:01:13,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 14:01:13,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 14:01:13,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 14:01:13,905 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 14:01:13,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 14:01:13,907 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 14:01:13,908 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 [2018-09-11 14:01:13,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 14:01:13,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 14:01:13,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 14:01:13,938 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 14:01:13,938 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 14:01:13,938 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 14:01:13,939 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 14:01:13,939 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 14:01:13,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 14:01:13,939 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-11 14:01:13,939 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 14:01:13,940 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 14:01:13,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 14:01:13,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 14:01:13,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 14:01:13,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 14:01:13,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 14:01:13,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 14:01:13,942 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 14:01:13,943 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 14:01:13,943 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 14:01:13,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 14:01:13,943 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 14:01:13,944 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 14:01:13,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 14:01:13,945 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 14:01:13,945 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 14:01:13,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 14:01:13,945 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 14:01:13,946 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 14:01:13,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 14:01:13,946 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 14:01:13,946 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 14:01:13,946 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 14:01:14,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 14:01:14,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 14:01:14,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 14:01:14,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 14:01:14,020 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 14:01:14,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21_true-unreach-call_false-termination.c [2018-09-11 14:01:14,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe1c61d2e/28ba46f85b854a0aa75c0ff78a9f2d2c/FLAG7c07dd2f0 [2018-09-11 14:01:14,684 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 14:01:14,685 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label21_true-unreach-call_false-termination.c [2018-09-11 14:01:14,702 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe1c61d2e/28ba46f85b854a0aa75c0ff78a9f2d2c/FLAG7c07dd2f0 [2018-09-11 14:01:14,718 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe1c61d2e/28ba46f85b854a0aa75c0ff78a9f2d2c [2018-09-11 14:01:14,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 14:01:14,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 14:01:14,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 14:01:14,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 14:01:14,742 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 14:01:14,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 02:01:14" (1/1) ... [2018-09-11 14:01:14,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f00c975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:14, skipping insertion in model container [2018-09-11 14:01:14,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 02:01:14" (1/1) ... [2018-09-11 14:01:14,939 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 14:01:15,207 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 14:01:15,228 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 14:01:15,408 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 14:01:15,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15 WrapperNode [2018-09-11 14:01:15,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 14:01:15,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 14:01:15,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 14:01:15,454 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 14:01:15,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 14:01:15,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 14:01:15,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 14:01:15,564 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 14:01:15,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (1/1) ... [2018-09-11 14:01:15,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 14:01:15,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 14:01:15,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 14:01:15,796 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 14:01:15,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (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 [2018-09-11 14:01:15,870 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 [2018-09-11 14:01:15,870 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 [2018-09-11 14:01:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 14:01:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 14:01:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 14:01:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 14:01:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 14:01:15,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 14:01:19,071 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 14:01:19,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 02:01:19 BoogieIcfgContainer [2018-09-11 14:01:19,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 14:01:19,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 14:01:19,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 14:01:19,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 14:01:19,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 02:01:14" (1/3) ... [2018-09-11 14:01:19,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 02:01:19, skipping insertion in model container [2018-09-11 14:01:19,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:01:15" (2/3) ... [2018-09-11 14:01:19,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ad9efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 02:01:19, skipping insertion in model container [2018-09-11 14:01:19,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 02:01:19" (3/3) ... [2018-09-11 14:01:19,082 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label21_true-unreach-call_false-termination.c [2018-09-11 14:01:19,093 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 14:01:19,102 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 14:01:19,157 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 14:01:19,158 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 14:01:19,158 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 14:01:19,159 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 14:01:19,159 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 14:01:19,159 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 14:01:19,160 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 14:01:19,160 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 14:01:19,160 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 14:01:19,188 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-11 14:01:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-09-11 14:01:19,201 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 14:01:19,203 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] [2018-09-11 14:01:19,204 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]=== [2018-09-11 14:01:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash -7020931, now seen corresponding path program 1 times [2018-09-11 14:01:19,212 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 14:01:19,214 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-09-11 14:01:19,217 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], [493], [495], [862], [863], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-11 14:01:19,266 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-11 14:01:19,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown