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/Problem15_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 16:55:25,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 16:55:25,958 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 16:55:25,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 16:55:25,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 16:55:25,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 16:55:25,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 16:55:25,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 16:55:25,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 16:55:25,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 16:55:25,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 16:55:25,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 16:55:25,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 16:55:25,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 16:55:25,984 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 16:55:25,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 16:55:25,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 16:55:25,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 16:55:25,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 16:55:25,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 16:55:25,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 16:55:25,999 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 16:55:26,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 16:55:26,007 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 16:55:26,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 16:55:26,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 16:55:26,013 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 16:55:26,014 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 16:55:26,014 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 16:55:26,018 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 16:55:26,018 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 16:55:26,019 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 16:55:26,019 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 16:55:26,019 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 16:55:26,020 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 16:55:26,022 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 16:55:26,023 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 16:55:26,049 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 16:55:26,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 16:55:26,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 16:55:26,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 16:55:26,051 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 16:55:26,051 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 16:55:26,054 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 16:55:26,054 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 16:55:26,054 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 16:55:26,054 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-11 16:55:26,054 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 16:55:26,055 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 16:55:26,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 16:55:26,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 16:55:26,056 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 16:55:26,056 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 16:55:26,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 16:55:26,056 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 16:55:26,057 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 16:55:26,058 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 16:55:26,058 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 16:55:26,058 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 16:55:26,058 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 16:55:26,059 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 16:55:26,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 16:55:26,059 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 16:55:26,059 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 16:55:26,059 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 16:55:26,061 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 16:55:26,061 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 16:55:26,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 16:55:26,061 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 16:55:26,062 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 16:55:26,062 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 16:55:26,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 16:55:26,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 16:55:26,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 16:55:26,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 16:55:26,151 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 16:55:26,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-09-11 16:55:26,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0eb27743/31959ecc63ab4ad690ae7134bc722e51/FLAG3a63b8776 [2018-09-11 16:55:26,836 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 16:55:26,837 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-09-11 16:55:26,859 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0eb27743/31959ecc63ab4ad690ae7134bc722e51/FLAG3a63b8776 [2018-09-11 16:55:26,874 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0eb27743/31959ecc63ab4ad690ae7134bc722e51 [2018-09-11 16:55:26,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 16:55:26,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 16:55:26,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 16:55:26,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 16:55:26,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 16:55:26,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:55:26" (1/1) ... [2018-09-11 16:55:26,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a681a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:26, skipping insertion in model container [2018-09-11 16:55:26,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:55:26" (1/1) ... [2018-09-11 16:55:27,179 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 16:55:27,727 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 16:55:27,750 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 16:55:28,060 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 16:55:28,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28 WrapperNode [2018-09-11 16:55:28,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 16:55:28,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 16:55:28,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 16:55:28,225 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 16:55:28,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:28,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:28,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 16:55:28,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 16:55:28,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 16:55:28,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 16:55:29,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (1/1) ... [2018-09-11 16:55:29,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 16:55:29,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 16:55:29,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 16:55:29,214 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 16:55:29,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (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 [2018-09-11 16:55:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 16:55:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 16:55:29,293 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 16:55:29,294 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 16:55:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 16:55:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 16:55:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 16:55:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 16:55:29,295 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 16:55:29,295 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 16:55:37,690 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 16:55:37,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:55:37 BoogieIcfgContainer [2018-09-11 16:55:37,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 16:55:37,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 16:55:37,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 16:55:37,696 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 16:55:37,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 04:55:26" (1/3) ... [2018-09-11 16:55:37,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf7b04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 04:55:37, skipping insertion in model container [2018-09-11 16:55:37,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:55:28" (2/3) ... [2018-09-11 16:55:37,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf7b04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 04:55:37, skipping insertion in model container [2018-09-11 16:55:37,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:55:37" (3/3) ... [2018-09-11 16:55:37,702 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label53_true-unreach-call.c [2018-09-11 16:55:37,710 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 16:55:37,720 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 16:55:37,777 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 16:55:37,778 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 16:55:37,778 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 16:55:37,778 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 16:55:37,778 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 16:55:37,778 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 16:55:37,778 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 16:55:37,779 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 16:55:37,779 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 16:55:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-11 16:55:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-11 16:55:37,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 16:55:37,826 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] [2018-09-11 16:55:37,827 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 16:55:37,834 INFO L82 PathProgramCache]: Analyzing trace with hash -423970076, now seen corresponding path program 1 times [2018-09-11 16:55:37,836 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 16:55:37,838 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-11 16:55:37,842 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], [333], [335], [1567], [1571], [1577], [1581], [1662], [1663], [1664], [1666] [2018-09-11 16:55:37,886 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-11 16:55:37,886 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