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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:43:21,826 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:43:21,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:43:21,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:43:21,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:43:21,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:43:21,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:43:21,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:43:21,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:43:21,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:43:21,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:43:21,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:43:21,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:43:21,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:43:21,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:43:21,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:43:21,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:43:21,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:43:21,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:43:21,861 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:43:21,862 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:43:21,863 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:43:21,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:43:21,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:43:21,867 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:43:21,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:43:21,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:43:21,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:43:21,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:43:21,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:43:21,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:43:21,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:43:21,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:43:21,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:43:21,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:43:21,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:43:21,876 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:43:21,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:43:21,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:43:21,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:43:21,898 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:43:21,898 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:43:21,898 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:43:21,898 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:43:21,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:43:21,899 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:43:21,899 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:43:21,899 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:43:21,899 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:43:21,900 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:43:21,900 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:43:21,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:43:21,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:43:21,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:43:21,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:43:21,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:43:21,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:43:21,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:43:21,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:43:21,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:43:21,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:43:21,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:43:21,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:43:21,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:43:21,903 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:43:21,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:43:21,904 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:43:21,904 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:43:21,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:43:21,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:43:21,905 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:43:21,905 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:43:21,905 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:43:21,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:43:21,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:43:21,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:43:21,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:43:21,967 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:43:21,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-11-07 08:43:22,028 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1f6e954/fa6fc01020cb44fa870c7ebfcc11f1b2/FLAG01501de74 [2018-11-07 08:43:22,773 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:43:22,774 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-11-07 08:43:22,809 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1f6e954/fa6fc01020cb44fa870c7ebfcc11f1b2/FLAG01501de74 [2018-11-07 08:43:22,831 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1f6e954/fa6fc01020cb44fa870c7ebfcc11f1b2 [2018-11-07 08:43:22,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:43:22,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:43:22,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:43:22,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:43:22,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:43:22,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:22" (1/1) ... [2018-11-07 08:43:22,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c9c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:22, skipping insertion in model container [2018-11-07 08:43:22,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:22" (1/1) ... [2018-11-07 08:43:22,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:43:23,051 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:43:24,316 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:43:24,321 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:43:24,927 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:43:24,962 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:43:24,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24 WrapperNode [2018-11-07 08:43:24,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:43:24,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:43:24,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:43:24,965 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:43:24,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:43:25,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:43:25,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:43:25,288 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:43:25,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (1/1) ... [2018-11-07 08:43:25,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:43:25,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:43:25,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:43:25,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:43:25,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (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 [2018-11-07 08:43:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:43:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:43:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:43:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:43:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:43:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:43:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:43:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:43:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:43:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:43:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:43:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:43:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:43:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:43:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:43:35,758 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:43:35,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:35 BoogieIcfgContainer [2018-11-07 08:43:35,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:43:35,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:43:35,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:43:35,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:43:35,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:43:22" (1/3) ... [2018-11-07 08:43:35,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:43:35, skipping insertion in model container [2018-11-07 08:43:35,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:24" (2/3) ... [2018-11-07 08:43:35,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:43:35, skipping insertion in model container [2018-11-07 08:43:35,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:35" (3/3) ... [2018-11-07 08:43:35,768 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label47_true-unreach-call.c [2018-11-07 08:43:35,778 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:43:35,788 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:43:35,808 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:43:35,859 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:43:35,859 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:43:35,859 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:43:35,860 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:43:35,860 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:43:35,860 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:43:35,860 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:43:35,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:43:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 08:43:35,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-07 08:43:35,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:43:35,913 INFO L375 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] [2018-11-07 08:43:35,916 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:43:35,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:43:35,923 INFO L82 PathProgramCache]: Analyzing trace with hash 986841587, now seen corresponding path program 1 times [2018-11-07 08:43:35,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:43:36,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:36,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:43:36,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:36,090 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:43:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:43:36,541 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:43:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:43:36,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:43:36,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:43:36,663 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:43:36,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:43:36,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:43:36,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:43:36,692 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 08:43:44,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:43:44,560 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 08:43:44,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:43:44,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-11-07 08:43:44,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:43:44,608 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 08:43:44,608 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 08:43:44,618 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 [2018-11-07 08:43:44,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 08:43:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 08:43:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 08:43:44,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-07 08:43:44,775 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 45 [2018-11-07 08:43:44,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:43:44,776 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-07 08:43:44,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:43:44,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-07 08:43:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 08:43:44,784 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:43:44,784 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:43:44,787 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:43:44,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:43:44,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1872718060, now seen corresponding path program 1 times [2018-11-07 08:43:44,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:43:44,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:44,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:43:44,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:44,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:43:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:43:45,224 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:43:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:43:45,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:43:45,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:43:45,299 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:43:45,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:43:45,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:43:45,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:43:45,302 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-07 08:43:54,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:43:54,816 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-07 08:43:54,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:43:54,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-07 08:43:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:43:54,844 INFO L225 Difference]: With dead ends: 4818 [2018-11-07 08:43:54,844 INFO L226 Difference]: Without dead ends: 3220 [2018-11-07 08:43:54,850 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:43:54,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-07 08:43:54,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-07 08:43:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-07 08:43:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-07 08:43:54,949 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 119 [2018-11-07 08:43:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:43:54,950 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-07 08:43:54,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:43:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-07 08:43:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 08:43:54,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:43:54,954 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:43:54,955 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:43:54,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:43:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash 715820005, now seen corresponding path program 1 times [2018-11-07 08:43:54,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:43:54,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:54,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:43:54,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:43:54,957 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:43:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:43:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:43:55,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:43:55,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:43:55,358 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:43:55,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:43:55,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:43:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:43:55,359 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-11-07 08:44:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:44:06,657 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-11-07 08:44:06,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:44:06,658 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 08:44:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:44:06,718 INFO L225 Difference]: With dead ends: 11148 [2018-11-07 08:44:06,719 INFO L226 Difference]: Without dead ends: 7968 [2018-11-07 08:44:06,738 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:44:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-11-07 08:44:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-11-07 08:44:06,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-11-07 08:44:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-11-07 08:44:06,981 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 124 [2018-11-07 08:44:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:44:06,982 INFO L480 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-11-07 08:44:06,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:44:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-11-07 08:44:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 08:44:06,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:44:06,985 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:44:06,985 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:44:06,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:44:06,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1322155659, now seen corresponding path program 1 times [2018-11-07 08:44:06,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:44:06,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:06,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:44:06,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:06,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:44:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:44:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:44:07,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:44:07,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:44:07,181 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:44:07,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:44:07,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:44:07,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:44:07,183 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-11-07 08:44:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:44:16,805 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-11-07 08:44:16,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:44:16,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-11-07 08:44:16,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:44:16,889 INFO L225 Difference]: With dead ends: 22224 [2018-11-07 08:44:16,890 INFO L226 Difference]: Without dead ends: 14306 [2018-11-07 08:44:16,932 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 [2018-11-07 08:44:16,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-11-07 08:44:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-11-07 08:44:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-11-07 08:44:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-11-07 08:44:17,329 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 132 [2018-11-07 08:44:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:44:17,329 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-11-07 08:44:17,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:44:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-11-07 08:44:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 08:44:17,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:44:17,335 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:44:17,335 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:44:17,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:44:17,339 INFO L82 PathProgramCache]: Analyzing trace with hash 822542856, now seen corresponding path program 1 times [2018-11-07 08:44:17,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:44:17,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:17,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:44:17,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:17,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:44:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:44:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:44:17,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:44:17,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:44:17,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:44:17,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:44:17,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:44:17,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:44:17,879 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-11-07 08:44:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:44:31,404 INFO L93 Difference]: Finished difference Result 55643 states and 94112 transitions. [2018-11-07 08:44:31,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 08:44:31,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 08:44:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:44:31,673 INFO L225 Difference]: With dead ends: 55643 [2018-11-07 08:44:31,673 INFO L226 Difference]: Without dead ends: 41430 [2018-11-07 08:44:31,810 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:44:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41430 states. [2018-11-07 08:44:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41430 to 41207. [2018-11-07 08:44:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41207 states. [2018-11-07 08:44:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41207 states to 41207 states and 61751 transitions. [2018-11-07 08:44:33,115 INFO L78 Accepts]: Start accepts. Automaton has 41207 states and 61751 transitions. Word has length 149 [2018-11-07 08:44:33,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:44:33,116 INFO L480 AbstractCegarLoop]: Abstraction has 41207 states and 61751 transitions. [2018-11-07 08:44:33,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:44:33,116 INFO L276 IsEmpty]: Start isEmpty. Operand 41207 states and 61751 transitions. [2018-11-07 08:44:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-07 08:44:33,123 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:44:33,123 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:44:33,123 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:44:33,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:44:33,124 INFO L82 PathProgramCache]: Analyzing trace with hash -891765791, now seen corresponding path program 1 times [2018-11-07 08:44:33,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:44:33,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:33,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:44:33,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:33,126 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:44:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:44:33,407 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:44:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:44:34,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:44:34,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:44:34,108 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:44:34,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:44:34,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:44:34,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:44:34,109 INFO L87 Difference]: Start difference. First operand 41207 states and 61751 transitions. Second operand 6 states. [2018-11-07 08:44:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:44:43,987 INFO L93 Difference]: Finished difference Result 102200 states and 162670 transitions. [2018-11-07 08:44:43,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:44:43,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2018-11-07 08:44:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:44:44,252 INFO L225 Difference]: With dead ends: 102200 [2018-11-07 08:44:44,253 INFO L226 Difference]: Without dead ends: 60999 [2018-11-07 08:44:44,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:44:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60999 states. [2018-11-07 08:44:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60999 to 60729. [2018-11-07 08:44:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60729 states. [2018-11-07 08:44:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60729 states to 60729 states and 85418 transitions. [2018-11-07 08:44:45,874 INFO L78 Accepts]: Start accepts. Automaton has 60729 states and 85418 transitions. Word has length 170 [2018-11-07 08:44:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:44:45,874 INFO L480 AbstractCegarLoop]: Abstraction has 60729 states and 85418 transitions. [2018-11-07 08:44:45,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:44:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 60729 states and 85418 transitions. [2018-11-07 08:44:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-07 08:44:45,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:44:45,886 INFO L375 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, 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] [2018-11-07 08:44:45,886 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:44:45,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:44:45,887 INFO L82 PathProgramCache]: Analyzing trace with hash -707609888, now seen corresponding path program 1 times [2018-11-07 08:44:45,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:44:45,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:45,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:44:45,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:44:45,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:44:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:44:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 76 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 08:44:46,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:44:46,244 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:44:46,245 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-11-07 08:44:46,247 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2396], [2397], [2400], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 08:44:46,328 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:44:46,331 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:44:47,114 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:44:47,117 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 08:44:47,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:44:47,161 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:44:47,792 INFO L227 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.54% of their original sizes. [2018-11-07 08:44:47,793 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:44:48,026 INFO L415 sIntCurrentIteration]: We unified 203 AI predicates to 203 [2018-11-07 08:44:48,026 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:44:48,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:44:48,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 08:44:48,027 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:44:48,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:44:48,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:44:48,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:44:48,031 INFO L87 Difference]: Start difference. First operand 60729 states and 85418 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 08:47:24,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:47:24,548 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:47:24,554 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:47:24,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:47:24 BoogieIcfgContainer [2018-11-07 08:47:24,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:47:24,555 INFO L168 Benchmark]: Toolchain (without parser) took 241709.52 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -973.8 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,557 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:47:24,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2115.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 323.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,559 INFO L168 Benchmark]: Boogie Preprocessor took 281.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,560 INFO L168 Benchmark]: RCFGBuilder took 10189.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,561 INFO L168 Benchmark]: TraceAbstraction took 228793.80 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: -818.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 08:47:24,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2115.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 323.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 281.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10189.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228793.80 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: -818.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (60729states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (40139 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 228.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 219.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1367 SDtfs, 20002 SDslu, 1060 SDs, 0 SdLazy, 36549 SolverSat, 8106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 191.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 259 GetRequests, 212 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60729occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9974647416551465 AbsIntWeakeningRatio, 0.1330049261083744 AbsIntAvgWeakeningVarsNumRemoved, 17.25615763546798 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 658 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 943 NumberOfCodeBlocks, 943 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 600470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 271/345 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown