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/Problem13_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:40:02,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:40:02,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:40:02,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:40:02,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:40:02,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:40:02,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:40:02,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:40:02,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:40:02,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:40:02,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:40:02,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:40:02,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:40:02,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:40:02,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:40:02,684 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:40:02,685 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:40:02,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:40:02,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:40:02,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:40:02,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:40:02,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:40:02,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:40:02,700 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:40:02,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:40:02,703 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:40:02,708 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:40:02,710 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:40:02,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:40:02,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:40:02,712 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:40:02,717 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:40:02,717 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:40:02,717 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:40:02,719 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:40:02,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:40:02,721 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 [2018-09-15 22:40:02,758 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:40:02,758 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:40:02,759 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:40:02,759 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:40:02,760 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:40:02,760 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:40:02,760 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:40:02,760 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:40:02,760 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:40:02,761 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:40:02,761 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:40:02,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:40:02,763 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:40:02,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:40:02,763 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:40:02,764 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:40:02,765 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:40:02,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:40:02,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:40:02,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:40:02,767 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:40:02,767 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:40:02,767 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:40:02,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:40:02,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:40:02,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:40:02,768 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:40:02,769 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:40:02,769 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:40:02,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:40:02,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:40:02,769 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:40:02,770 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:40:02,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:40:02,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:40:02,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:40:02,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:40:02,848 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:40:02,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-15 22:40:03,251 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2948baf3/4ef7b0fb211f412ea46ba6517616b4b8/FLAGf4842c0d7 [2018-09-15 22:40:03,882 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:40:03,883 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14_true-unreach-call.c [2018-09-15 22:40:03,938 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2948baf3/4ef7b0fb211f412ea46ba6517616b4b8/FLAGf4842c0d7 [2018-09-15 22:40:03,960 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2948baf3/4ef7b0fb211f412ea46ba6517616b4b8 [2018-09-15 22:40:03,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:40:03,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:40:03,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:40:03,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:40:03,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:40:03,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:40:03" (1/1) ... [2018-09-15 22:40:03,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b28bbf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:03, skipping insertion in model container [2018-09-15 22:40:03,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:40:03" (1/1) ... [2018-09-15 22:40:04,006 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:40:05,754 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:40:05,776 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:40:06,586 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:40:06,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06 WrapperNode [2018-09-15 22:40:06,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:40:06,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:40:06,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:40:06,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:40:07,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:07,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:07,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:40:07,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:40:07,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:40:07,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:40:08,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:08,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (1/1) ... [2018-09-15 22:40:09,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:40:09,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:40:09,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:40:09,115 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:40:09,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (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 [2018-09-15 22:40:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:40:09,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 22:40:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 22:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 22:40:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 22:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 22:40:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 22:40:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:40:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:40:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:40:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:40:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:40:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:40:22,365 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:40:22,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:40:22 BoogieIcfgContainer [2018-09-15 22:40:22,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:40:22,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:40:22,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:40:22,372 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:40:22,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:40:03" (1/3) ... [2018-09-15 22:40:22,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163b42da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:40:22, skipping insertion in model container [2018-09-15 22:40:22,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:40:06" (2/3) ... [2018-09-15 22:40:22,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163b42da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:40:22, skipping insertion in model container [2018-09-15 22:40:22,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:40:22" (3/3) ... [2018-09-15 22:40:22,376 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label14_true-unreach-call.c [2018-09-15 22:40:22,386 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:40:22,396 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:40:22,461 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:40:22,462 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:40:22,462 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:40:22,462 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:40:22,462 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:40:22,463 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:40:22,463 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:40:22,463 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:40:22,463 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:40:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-15 22:40:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-15 22:40:22,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:40:22,515 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] [2018-09-15 22:40:22,516 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:40:22,522 INFO L82 PathProgramCache]: Analyzing trace with hash 963614956, now seen corresponding path program 1 times [2018-09-15 22:40:22,525 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:40:22,527 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-15 22:40:22,529 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2911], [2913], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-15 22:40:22,574 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:40:22,574 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:40:32,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:40:32,243 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 22:40:32,263 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:40:39,524 INFO L232 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 72.63% of their original sizes. [2018-09-15 22:40:39,525 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:40:39,822 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:40:39,824 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:40:39,824 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:40:39,824 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:40:39,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:40:39,838 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:40:39,839 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:40:39,844 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-15 22:40:54,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:40:54,162 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-15 22:40:54,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:40:54,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-15 22:40:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:40:54,200 INFO L225 Difference]: With dead ends: 3044 [2018-09-15 22:40:54,200 INFO L226 Difference]: Without dead ends: 1922 [2018-09-15 22:40:54,213 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:40:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-15 22:40:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-15 22:40:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-15 22:40:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-15 22:40:54,382 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 48 [2018-09-15 22:40:54,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:40:54,383 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-15 22:40:54,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:40:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-15 22:40:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-15 22:40:54,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:40:54,396 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:40:54,396 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:40:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash -153475968, now seen corresponding path program 1 times [2018-09-15 22:40:54,396 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:40:54,397 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-09-15 22:40:54,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2911], [2913], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-15 22:40:54,415 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:40:54,416 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