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/Problem17_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 17:19:50,199 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 17:19:50,202 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 17:19:50,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 17:19:50,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 17:19:50,217 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 17:19:50,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 17:19:50,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 17:19:50,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 17:19:50,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 17:19:50,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 17:19:50,224 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 17:19:50,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 17:19:50,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 17:19:50,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 17:19:50,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 17:19:50,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 17:19:50,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 17:19:50,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 17:19:50,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 17:19:50,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 17:19:50,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 17:19:50,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 17:19:50,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 17:19:50,240 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 17:19:50,241 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 17:19:50,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 17:19:50,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 17:19:50,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 17:19:50,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 17:19:50,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 17:19:50,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 17:19:50,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 17:19:50,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 17:19:50,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 17:19:50,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 17:19:50,249 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 17:19:50,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 17:19:50,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 17:19:50,269 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 17:19:50,269 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 17:19:50,270 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 17:19:50,270 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 17:19:50,270 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 17:19:50,270 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 17:19:50,270 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 17:19:50,271 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-11 17:19:50,271 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 17:19:50,271 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 17:19:50,272 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 17:19:50,272 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 17:19:50,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 17:19:50,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 17:19:50,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 17:19:50,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 17:19:50,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 17:19:50,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 17:19:50,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 17:19:50,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 17:19:50,274 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 17:19:50,274 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 17:19:50,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 17:19:50,274 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 17:19:50,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 17:19:50,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 17:19:50,275 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 17:19:50,275 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 17:19:50,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 17:19:50,276 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 17:19:50,276 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 17:19:50,276 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 17:19:50,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 17:19:50,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 17:19:50,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 17:19:50,352 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 17:19:50,352 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 17:19:50,353 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label32_true-unreach-call.c [2018-09-11 17:19:50,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54dfc4665/64dddbe98b0b45e4915476ad498120a7/FLAGf017ad56c [2018-09-11 17:19:51,223 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 17:19:51,224 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label32_true-unreach-call.c [2018-09-11 17:19:51,262 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54dfc4665/64dddbe98b0b45e4915476ad498120a7/FLAGf017ad56c [2018-09-11 17:19:51,285 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54dfc4665/64dddbe98b0b45e4915476ad498120a7 [2018-09-11 17:19:51,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 17:19:51,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 17:19:51,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 17:19:51,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 17:19:51,318 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 17:19:51,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:19:51" (1/1) ... [2018-09-11 17:19:51,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:51, skipping insertion in model container [2018-09-11 17:19:51,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:19:51" (1/1) ... [2018-09-11 17:19:51,635 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 17:19:52,423 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:19:52,444 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 17:19:53,073 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:19:53,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53 WrapperNode [2018-09-11 17:19:53,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 17:19:53,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 17:19:53,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 17:19:53,299 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 17:19:53,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:53,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:53,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 17:19:53,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 17:19:53,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 17:19:53,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 17:19:54,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (1/1) ... [2018-09-11 17:19:54,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 17:19:54,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 17:19:54,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 17:19:54,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 17:19:54,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (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 17:19:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 17:19:54,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 17:19:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-11 17:19:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-11 17:19:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 17:19:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 17:19:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 17:19:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 17:19:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-11 17:19:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-11 17:20:04,766 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 17:20:04,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:20:04 BoogieIcfgContainer [2018-09-11 17:20:04,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 17:20:04,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 17:20:04,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 17:20:04,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 17:20:04,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 05:19:51" (1/3) ... [2018-09-11 17:20:04,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172db208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:20:04, skipping insertion in model container [2018-09-11 17:20:04,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:19:53" (2/3) ... [2018-09-11 17:20:04,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172db208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:20:04, skipping insertion in model container [2018-09-11 17:20:04,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:20:04" (3/3) ... [2018-09-11 17:20:04,779 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label32_true-unreach-call.c [2018-09-11 17:20:04,791 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 17:20:04,804 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 17:20:04,876 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 17:20:04,877 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 17:20:04,877 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 17:20:04,877 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 17:20:04,878 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 17:20:04,878 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 17:20:04,878 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 17:20:04,878 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 17:20:04,878 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 17:20:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-11 17:20:04,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-11 17:20:04,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 17:20:04,932 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] [2018-09-11 17:20:04,934 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 17:20:04,940 INFO L82 PathProgramCache]: Analyzing trace with hash 463919217, now seen corresponding path program 1 times [2018-09-11 17:20:04,943 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 17:20:04,944 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-11 17:20:04,947 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [1574], [1578], [1584], [1588], [2306], [2307], [2308], [2310] [2018-09-11 17:20:04,993 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-11 17:20:04,993 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