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/Problem01_label01_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-12 00:18:27,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-12 00:18:27,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-12 00:18:27,351 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-12 00:18:27,352 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-12 00:18:27,353 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-12 00:18:27,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-12 00:18:27,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-12 00:18:27,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-12 00:18:27,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-12 00:18:27,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-12 00:18:27,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-12 00:18:27,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-12 00:18:27,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-12 00:18:27,371 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-12 00:18:27,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-12 00:18:27,373 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-12 00:18:27,375 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-12 00:18:27,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-12 00:18:27,379 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-12 00:18:27,380 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-12 00:18:27,381 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-12 00:18:27,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-12 00:18:27,383 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-12 00:18:27,384 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-12 00:18:27,385 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-12 00:18:27,386 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-12 00:18:27,387 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-12 00:18:27,387 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-12 00:18:27,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-12 00:18:27,389 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-12 00:18:27,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-12 00:18:27,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-12 00:18:27,390 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-12 00:18:27,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-12 00:18:27,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-12 00:18:27,394 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 00:18:27,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-12 00:18:27,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-12 00:18:27,412 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-12 00:18:27,412 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-12 00:18:27,412 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-12 00:18:27,412 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-12 00:18:27,412 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-12 00:18:27,413 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-12 00:18:27,413 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-12 00:18:27,413 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-12 00:18:27,413 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-12 00:18:27,414 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-12 00:18:27,414 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-12 00:18:27,414 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-12 00:18:27,414 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-12 00:18:27,415 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-12 00:18:27,415 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-12 00:18:27,415 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-12 00:18:27,415 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-12 00:18:27,415 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-12 00:18:27,416 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-12 00:18:27,416 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-12 00:18:27,416 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-12 00:18:27,416 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-12 00:18:27,416 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-12 00:18:27,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-12 00:18:27,417 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-12 00:18:27,417 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-12 00:18:27,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-12 00:18:27,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-12 00:18:27,417 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-12 00:18:27,418 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-12 00:18:27,418 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-12 00:18:27,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-12 00:18:27,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-12 00:18:27,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-12 00:18:27,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-12 00:18:27,497 INFO L276 PluginConnector]: CDTParser initialized [2018-09-12 00:18:27,498 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label01_true-unreach-call_false-termination.c [2018-09-12 00:18:27,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f707d7192/f3b4da3988aa48a5b9e8f290ece08dce/FLAGd34360c57 [2018-09-12 00:18:28,186 INFO L276 CDTParser]: Found 1 translation units. [2018-09-12 00:18:28,187 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label01_true-unreach-call_false-termination.c [2018-09-12 00:18:28,212 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f707d7192/f3b4da3988aa48a5b9e8f290ece08dce/FLAGd34360c57 [2018-09-12 00:18:28,236 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f707d7192/f3b4da3988aa48a5b9e8f290ece08dce [2018-09-12 00:18:28,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-12 00:18:28,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-12 00:18:28,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-12 00:18:28,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-12 00:18:28,259 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-12 00:18:28,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:28,264 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 12.09 12:18:28, skipping insertion in model container [2018-09-12 00:18:28,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:28,519 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-12 00:18:28,756 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-12 00:18:28,777 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-12 00:18:28,928 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-12 00:18:28,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28 WrapperNode [2018-09-12 00:18:28,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-12 00:18:28,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-12 00:18:28,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-12 00:18:28,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-12 00:18:28,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-12 00:18:29,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-12 00:18:29,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-12 00:18:29,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-12 00:18:29,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (1/1) ... [2018-09-12 00:18:29,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-12 00:18:29,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-12 00:18:29,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-12 00:18:29,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-12 00:18:29,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (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 00:18:29,426 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 00:18:29,427 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 00:18:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-12 00:18:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-12 00:18:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-12 00:18:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-12 00:18:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-12 00:18:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-12 00:18:32,553 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-12 00:18:32,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:18:32 BoogieIcfgContainer [2018-09-12 00:18:32,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-12 00:18:32,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-12 00:18:32,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-12 00:18:32,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-12 00:18:32,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:18:28" (1/3) ... [2018-09-12 00:18:32,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f251444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:18:32, skipping insertion in model container [2018-09-12 00:18:32,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:28" (2/3) ... [2018-09-12 00:18:32,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f251444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:18:32, skipping insertion in model container [2018-09-12 00:18:32,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:18:32" (3/3) ... [2018-09-12 00:18:32,566 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label01_true-unreach-call_false-termination.c [2018-09-12 00:18:32,576 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-12 00:18:32,585 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-12 00:18:32,643 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-12 00:18:32,643 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-12 00:18:32,643 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-12 00:18:32,644 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-12 00:18:32,644 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-12 00:18:32,644 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-12 00:18:32,644 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-12 00:18:32,644 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-12 00:18:32,644 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-12 00:18:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-12 00:18:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-09-12 00:18:32,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-12 00:18:32,685 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] [2018-09-12 00:18:32,686 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 00:18:32,691 INFO L82 PathProgramCache]: Analyzing trace with hash 764671664, now seen corresponding path program 1 times [2018-09-12 00:18:32,693 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-12 00:18:32,694 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 99 with the following transitions: [2018-09-12 00:18:32,697 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [44], [48], [52], [56], [60], [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], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [419], [421], [756], [757], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-12 00:18:32,747 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-12 00:18:32,747 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