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-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:26:41,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:26:41,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:26:41,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:26:41,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:26:41,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:26:41,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:26:41,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:26:41,050 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:26:41,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:26:41,052 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:26:41,052 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:26:41,053 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:26:41,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:26:41,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:26:41,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:26:41,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:26:41,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:26:41,065 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:26:41,072 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:26:41,073 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:26:41,075 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:26:41,080 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:26:41,080 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:26:41,081 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:26:41,082 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:26:41,083 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:26:41,083 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:26:41,084 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:26:41,085 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:26:41,085 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:26:41,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:26:41,086 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:26:41,086 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:26:41,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:26:41,088 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:26:41,088 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 18:26:41,117 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:26:41,117 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:26:41,119 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:26:41,120 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:26:41,120 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:26:41,120 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:26:41,120 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:26:41,120 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:26:41,121 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:26:41,121 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:26:41,121 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:26:41,122 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:26:41,122 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:26:41,122 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:26:41,122 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:26:41,123 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:26:41,123 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:26:41,123 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:26:41,123 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:26:41,123 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:26:41,124 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:26:41,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:26:41,124 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:26:41,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:26:41,124 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:26:41,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:26:41,125 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:26:41,125 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:26:41,125 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:26:41,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:26:41,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:26:41,126 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:26:41,126 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:26:41,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:26:41,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:26:41,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:26:41,202 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:26:41,202 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:26:41,203 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-09-14 18:26:41,557 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416d1351/4da51d26fd8949d78eecf056f29fda66/FLAG02b05ffe2 [2018-09-14 18:26:42,184 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:26:42,186 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-09-14 18:26:42,233 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416d1351/4da51d26fd8949d78eecf056f29fda66/FLAG02b05ffe2 [2018-09-14 18:26:42,253 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416d1351/4da51d26fd8949d78eecf056f29fda66 [2018-09-14 18:26:42,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:26:42,272 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:26:42,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:26:42,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:26:42,282 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:26:42,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:26:42" (1/1) ... [2018-09-14 18:26:42,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d304226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:42, skipping insertion in model container [2018-09-14 18:26:42,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:26:42" (1/1) ... [2018-09-14 18:26:42,299 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:26:44,202 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:26:44,224 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:26:45,323 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:26:45,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45 WrapperNode [2018-09-14 18:26:45,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:26:45,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:26:45,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:26:45,962 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:26:45,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:46,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:46,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:26:46,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:26:46,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:26:46,283 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:26:47,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (1/1) ... [2018-09-14 18:26:47,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:26:47,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:26:47,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:26:47,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:26:47,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (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 [2018-09-14 18:26:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:26:48,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:26:48,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:26:48,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:26:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:26:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:26:48,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:26:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:26:48,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:27:07,640 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:27:07,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:27:07 BoogieIcfgContainer [2018-09-14 18:27:07,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:27:07,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:27:07,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:27:07,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:27:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:26:42" (1/3) ... [2018-09-14 18:27:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef497c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:27:07, skipping insertion in model container [2018-09-14 18:27:07,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:26:45" (2/3) ... [2018-09-14 18:27:07,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef497c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:27:07, skipping insertion in model container [2018-09-14 18:27:07,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:27:07" (3/3) ... [2018-09-14 18:27:07,649 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label54_true-unreach-call.c [2018-09-14 18:27:07,656 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:27:07,665 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:27:07,733 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:27:07,734 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:27:07,734 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:27:07,734 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:27:07,734 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:27:07,735 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:27:07,735 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:27:07,735 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:27:07,735 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:27:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:27:07,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-14 18:27:07,800 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:07,801 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] [2018-09-14 18:27:07,802 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:07,807 INFO L82 PathProgramCache]: Analyzing trace with hash 2122689370, now seen corresponding path program 1 times [2018-09-14 18:27:07,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:07,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:07,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:07,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:07,863 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:08,346 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:27:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:08,471 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:08,471 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 18:27:08,471 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:08,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:27:08,495 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:27:08,495 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:27:08,498 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-14 18:27:23,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:23,609 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-09-14 18:27:23,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:27:23,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-09-14 18:27:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:23,664 INFO L225 Difference]: With dead ends: 4998 [2018-09-14 18:27:23,664 INFO L226 Difference]: Without dead ends: 3218 [2018-09-14 18:27:23,682 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:27:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-09-14 18:27:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-09-14 18:27:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-14 18:27:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-09-14 18:27:23,923 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 71 [2018-09-14 18:27:23,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:23,924 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-09-14 18:27:23,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:27:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-09-14 18:27:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-14 18:27:23,933 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:23,934 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, 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] [2018-09-14 18:27:23,934 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:23,934 INFO L82 PathProgramCache]: Analyzing trace with hash 952822916, now seen corresponding path program 1 times [2018-09-14 18:27:23,935 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:23,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:23,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:23,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:23,939 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:24,330 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:27:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:24,752 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:24,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:27:24,752 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:24,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:27:24,757 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:27:24,757 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:27:24,757 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-09-14 18:27:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:54,380 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-09-14 18:27:54,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:27:54,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-09-14 18:27:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:54,420 INFO L225 Difference]: With dead ends: 9340 [2018-09-14 18:27:54,421 INFO L226 Difference]: Without dead ends: 6131 [2018-09-14 18:27:54,434 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:27:54,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-09-14 18:27:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-09-14 18:27:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-09-14 18:27:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-09-14 18:27:54,637 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 143 [2018-09-14 18:27:54,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:54,638 INFO L480 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-09-14 18:27:54,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:27:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-09-14 18:27:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-14 18:27:54,654 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:54,654 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, 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] [2018-09-14 18:27:54,654 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash 159779727, now seen corresponding path program 1 times [2018-09-14 18:27:54,655 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:54,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:54,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:54,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:54,661 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:54,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:54,973 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:27:54,973 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:54,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:27:54,974 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:27:54,975 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:27:54,975 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-09-14 18:28:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:20,215 INFO L93 Difference]: Finished difference Result 21091 states and 34228 transitions. [2018-09-14 18:28:20,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:28:20,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-09-14 18:28:20,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:20,285 INFO L225 Difference]: With dead ends: 21091 [2018-09-14 18:28:20,286 INFO L226 Difference]: Without dead ends: 15006 [2018-09-14 18:28:20,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:28:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15006 states. [2018-09-14 18:28:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15006 to 14817. [2018-09-14 18:28:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14817 states. [2018-09-14 18:28:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14817 states to 14817 states and 22424 transitions. [2018-09-14 18:28:20,669 INFO L78 Accepts]: Start accepts. Automaton has 14817 states and 22424 transitions. Word has length 145 [2018-09-14 18:28:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:20,670 INFO L480 AbstractCegarLoop]: Abstraction has 14817 states and 22424 transitions. [2018-09-14 18:28:20,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:28:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 14817 states and 22424 transitions. [2018-09-14 18:28:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-14 18:28:20,677 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:20,678 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, 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] [2018-09-14 18:28:20,678 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:20,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1508483004, now seen corresponding path program 1 times [2018-09-14 18:28:20,679 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:20,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:20,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:20,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:20,683 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:28:21,062 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:28:21,063 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:28:21,063 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:21,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:28:21,064 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:28:21,064 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:28:21,064 INFO L87 Difference]: Start difference. First operand 14817 states and 22424 transitions. Second operand 5 states. [2018-09-14 18:28:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:50,971 INFO L93 Difference]: Finished difference Result 45430 states and 70748 transitions. [2018-09-14 18:28:50,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:28:50,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2018-09-14 18:28:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:51,091 INFO L225 Difference]: With dead ends: 45430 [2018-09-14 18:28:51,091 INFO L226 Difference]: Without dead ends: 30619 [2018-09-14 18:28:51,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:28:51,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30619 states. [2018-09-14 18:28:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30619 to 30149. [2018-09-14 18:28:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30149 states. [2018-09-14 18:28:51,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30149 states to 30149 states and 41658 transitions. [2018-09-14 18:28:51,792 INFO L78 Accepts]: Start accepts. Automaton has 30149 states and 41658 transitions. Word has length 176 [2018-09-14 18:28:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:51,793 INFO L480 AbstractCegarLoop]: Abstraction has 30149 states and 41658 transitions. [2018-09-14 18:28:51,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:28:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 30149 states and 41658 transitions. [2018-09-14 18:28:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-09-14 18:28:51,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:51,807 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 18:28:51,807 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:51,807 INFO L82 PathProgramCache]: Analyzing trace with hash -300329630, now seen corresponding path program 1 times [2018-09-14 18:28:51,807 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:51,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:51,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:51,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:51,808 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:52,112 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:28:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 128 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:28:52,506 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:28:52,506 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:28:52,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:52,520 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:28:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:52,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:28:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 18:28:52,833 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:28:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 18:28:53,269 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 18:28:53,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-14 18:28:53,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:53,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:28:53,271 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:28:53,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:28:53,271 INFO L87 Difference]: Start difference. First operand 30149 states and 41658 transitions. Second operand 3 states. [2018-09-14 18:29:08,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:29:08,262 INFO L93 Difference]: Finished difference Result 72011 states and 102389 transitions. [2018-09-14 18:29:08,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:29:08,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-09-14 18:29:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:29:08,449 INFO L225 Difference]: With dead ends: 72011 [2018-09-14 18:29:08,449 INFO L226 Difference]: Without dead ends: 41868 [2018-09-14 18:29:08,550 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 483 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:29:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41868 states. [2018-09-14 18:29:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41868 to 41747. [2018-09-14 18:29:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41747 states. [2018-09-14 18:29:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41747 states to 41747 states and 55735 transitions. [2018-09-14 18:29:09,447 INFO L78 Accepts]: Start accepts. Automaton has 41747 states and 55735 transitions. Word has length 242 [2018-09-14 18:29:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:29:09,448 INFO L480 AbstractCegarLoop]: Abstraction has 41747 states and 55735 transitions. [2018-09-14 18:29:09,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:29:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 41747 states and 55735 transitions. [2018-09-14 18:29:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-09-14 18:29:09,470 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:29:09,471 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-09-14 18:29:09,471 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:29:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1716113698, now seen corresponding path program 1 times [2018-09-14 18:29:09,472 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:29:09,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:09,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:09,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:09,473 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:29:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 128 proven. 109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:29:10,240 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:29:10,240 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:29:10,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:10,254 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:29:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:10,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:29:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 18:29:10,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:29:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-14 18:29:10,802 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:29:10,802 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2018-09-14 18:29:10,803 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:29:10,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:29:10,804 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:29:10,804 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:29:10,804 INFO L87 Difference]: Start difference. First operand 41747 states and 55735 transitions. Second operand 3 states. [2018-09-14 18:29:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:29:25,751 INFO L93 Difference]: Finished difference Result 120366 states and 168413 transitions. [2018-09-14 18:29:25,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:29:25,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2018-09-14 18:29:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:29:26,038 INFO L225 Difference]: With dead ends: 120366 [2018-09-14 18:29:26,038 INFO L226 Difference]: Without dead ends: 78625 [2018-09-14 18:29:26,112 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:29:26,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78625 states. [2018-09-14 18:29:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78625 to 78521. [2018-09-14 18:29:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78521 states. [2018-09-14 18:29:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78521 states to 78521 states and 107777 transitions. [2018-09-14 18:29:27,437 INFO L78 Accepts]: Start accepts. Automaton has 78521 states and 107777 transitions. Word has length 309 [2018-09-14 18:29:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:29:27,438 INFO L480 AbstractCegarLoop]: Abstraction has 78521 states and 107777 transitions. [2018-09-14 18:29:27,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:29:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 78521 states and 107777 transitions. [2018-09-14 18:29:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2018-09-14 18:29:27,550 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:29:27,550 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:29:27,551 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:29:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash 182756410, now seen corresponding path program 1 times [2018-09-14 18:29:27,551 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:29:27,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:27,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:27,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:27,553 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:29:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 192 proven. 158 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-14 18:29:28,561 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:29:28,561 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:29:28,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:28,577 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:29:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:28,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:29:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-09-14 18:29:29,021 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:29:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 192 proven. 4 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-09-14 18:29:29,952 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:29:29,953 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2018-09-14 18:29:29,953 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:29:29,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:29:29,954 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:29:29,954 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:29:29,954 INFO L87 Difference]: Start difference. First operand 78521 states and 107777 transitions. Second operand 3 states. [2018-09-14 18:29:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:29:45,829 INFO L93 Difference]: Finished difference Result 190849 states and 273853 transitions. [2018-09-14 18:29:45,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:29:45,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 630 [2018-09-14 18:29:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:29:46,157 INFO L225 Difference]: With dead ends: 190849 [2018-09-14 18:29:46,158 INFO L226 Difference]: Without dead ends: 112334 [2018-09-14 18:29:46,300 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1267 GetRequests, 1261 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:29:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112334 states. [2018-09-14 18:29:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112334 to 112312. [2018-09-14 18:29:48,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112312 states. [2018-09-14 18:29:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112312 states to 112312 states and 151174 transitions. [2018-09-14 18:29:48,908 INFO L78 Accepts]: Start accepts. Automaton has 112312 states and 151174 transitions. Word has length 630 [2018-09-14 18:29:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:29:48,909 INFO L480 AbstractCegarLoop]: Abstraction has 112312 states and 151174 transitions. [2018-09-14 18:29:48,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:29:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 112312 states and 151174 transitions. [2018-09-14 18:29:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2018-09-14 18:29:49,055 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:29:49,055 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:29:49,056 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:29:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash -705415387, now seen corresponding path program 1 times [2018-09-14 18:29:49,056 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:29:49,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:49,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:49,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:49,058 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:29:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 128 proven. 117 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:29:49,976 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:29:49,976 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:29:49,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:49,985 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:29:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:50,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:29:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-09-14 18:29:50,524 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:29:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 128 proven. 117 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:29:51,687 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:29:51,688 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-14 18:29:51,688 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:29:51,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:29:51,689 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:29:51,689 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-09-14 18:29:51,689 INFO L87 Difference]: Start difference. First operand 112312 states and 151174 transitions. Second operand 5 states. [2018-09-14 18:30:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:30:21,323 INFO L93 Difference]: Finished difference Result 285436 states and 407010 transitions. [2018-09-14 18:30:21,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:30:21,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 583 [2018-09-14 18:30:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:30:21,751 INFO L225 Difference]: With dead ends: 285436 [2018-09-14 18:30:21,752 INFO L226 Difference]: Without dead ends: 173130 [2018-09-14 18:30:21,888 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1162 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-14 18:30:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173130 states. [2018-09-14 18:30:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173130 to 172163. [2018-09-14 18:30:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172163 states. [2018-09-14 18:30:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172163 states to 172163 states and 237810 transitions. [2018-09-14 18:30:25,011 INFO L78 Accepts]: Start accepts. Automaton has 172163 states and 237810 transitions. Word has length 583 [2018-09-14 18:30:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:30:25,012 INFO L480 AbstractCegarLoop]: Abstraction has 172163 states and 237810 transitions. [2018-09-14 18:30:25,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:30:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 172163 states and 237810 transitions. [2018-09-14 18:30:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2018-09-14 18:30:25,120 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:30:25,121 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:30:25,121 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:30:25,122 INFO L82 PathProgramCache]: Analyzing trace with hash -630142350, now seen corresponding path program 1 times [2018-09-14 18:30:25,122 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:30:25,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:30:25,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:30:25,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:30:25,123 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:30:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:30:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 192 proven. 154 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-09-14 18:30:25,710 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:30:25,710 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:30:25,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:30:25,717 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:30:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:30:25,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:30:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-09-14 18:30:27,063 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:30:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 192 proven. 154 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-09-14 18:30:27,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:30:27,599 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-14 18:30:27,599 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:30:27,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:30:27,600 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:30:27,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:30:27,600 INFO L87 Difference]: Start difference. First operand 172163 states and 237810 transitions. Second operand 5 states. Received shutdown request... [2018-09-14 18:30:34,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:30:34,837 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:30:34,842 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:30:34,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:30:34 BoogieIcfgContainer [2018-09-14 18:30:34,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:30:34,844 INFO L168 Benchmark]: Toolchain (without parser) took 232576.34 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 899.0 MB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,845 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 18:30:34,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3688.15 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 182.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -104.5 MB). Peak memory consumption was 479.6 MB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 320.02 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,847 INFO L168 Benchmark]: Boogie Preprocessor took 1714.25 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 902.3 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -913.9 MB). Peak memory consumption was 128.5 MB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,848 INFO L168 Benchmark]: RCFGBuilder took 19644.70 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 221.8 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 163.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,851 INFO L168 Benchmark]: TraceAbstraction took 207200.54 ms. Allocated memory was 2.8 GB in the beginning and 3.5 GB in the end (delta: 692.6 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -305.6 MB). Peak memory consumption was 387.0 MB. Max. memory is 7.1 GB. [2018-09-14 18:30:34,860 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3688.15 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 182.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -104.5 MB). Peak memory consumption was 479.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 320.02 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1714.25 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 902.3 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -913.9 MB). Peak memory consumption was 128.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19644.70 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 221.8 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 163.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 207200.54 ms. Allocated memory was 2.8 GB in the beginning and 3.5 GB in the end (delta: 692.6 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -305.6 MB). Peak memory consumption was 387.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 208]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 208). Cancelled while BasicCegarLoop was constructing difference of abstraction (172163states) and FLOYD_HOARE automaton (currently 8 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (88113 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 207.1s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 184.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8869 SDtfs, 34595 SDslu, 4420 SDs, 0 SdLazy, 65339 SolverSat, 17371 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 156.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4991 GetRequests, 4922 SyntacticMatches, 7 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172163occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 9.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 1916 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 5453 NumberOfCodeBlocks, 5453 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7893 ConstructedInterpolants, 0 QuantifiedInterpolants, 7704449 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3699 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 4235/5115 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label54_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-30-34-881.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label54_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_18-30-34-881.csv Completed graceful shutdown