./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebd700d2a774ad3ca11fe220b69fa701cbe412e1 ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-21 12:29:18,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-21 12:29:18,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-21 12:29:18,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-21 12:29:18,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-21 12:29:18,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-21 12:29:18,846 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-21 12:29:18,848 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-21 12:29:18,850 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-21 12:29:18,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-21 12:29:18,852 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-21 12:29:18,852 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-21 12:29:18,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-21 12:29:18,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-21 12:29:18,856 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-21 12:29:18,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-21 12:29:18,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-21 12:29:18,860 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-21 12:29:18,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-21 12:29:18,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-21 12:29:18,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-21 12:29:18,867 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-21 12:29:18,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-21 12:29:18,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-21 12:29:18,870 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-21 12:29:18,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-21 12:29:18,873 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-21 12:29:18,874 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-21 12:29:18,875 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-21 12:29:18,876 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-21 12:29:18,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-21 12:29:18,877 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-21 12:29:18,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-21 12:29:18,878 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-21 12:29:18,879 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-21 12:29:18,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-21 12:29:18,880 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-21 12:29:18,902 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-21 12:29:18,903 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-21 12:29:18,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-21 12:29:18,907 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-21 12:29:18,907 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-21 12:29:18,907 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-21 12:29:18,907 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-21 12:29:18,908 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-21 12:29:18,908 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-21 12:29:18,908 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-21 12:29:18,908 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-21 12:29:18,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-21 12:29:18,909 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-21 12:29:18,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-21 12:29:18,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-21 12:29:18,911 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-21 12:29:18,911 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-21 12:29:18,911 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-21 12:29:18,911 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-21 12:29:18,911 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-21 12:29:18,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-21 12:29:18,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-21 12:29:18,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-21 12:29:18,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-21 12:29:18,912 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-21 12:29:18,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-21 12:29:18,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-21 12:29:18,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-21 12:29:18,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-21 12:29:18,915 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd700d2a774ad3ca11fe220b69fa701cbe412e1 [2018-10-21 12:29:18,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-21 12:29:19,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-21 12:29:19,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-21 12:29:19,010 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-21 12:29:19,012 INFO L276 PluginConnector]: CDTParser initialized [2018-10-21 12:29:19,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-10-21 12:29:19,090 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e47249113/a1566bcb6663418489f5315a1952e1af/FLAG98ccc6655 [2018-10-21 12:29:19,525 INFO L298 CDTParser]: Found 1 translation units. [2018-10-21 12:29:19,526 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-10-21 12:29:19,534 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e47249113/a1566bcb6663418489f5315a1952e1af/FLAG98ccc6655 [2018-10-21 12:29:19,551 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e47249113/a1566bcb6663418489f5315a1952e1af [2018-10-21 12:29:19,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-21 12:29:19,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-21 12:29:19,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-21 12:29:19,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-21 12:29:19,562 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-21 12:29:19,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447d3d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19, skipping insertion in model container [2018-10-21 12:29:19,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-21 12:29:19,601 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-21 12:29:19,833 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:29:19,838 INFO L189 MainTranslator]: Completed pre-run [2018-10-21 12:29:19,860 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:29:19,876 INFO L193 MainTranslator]: Completed translation [2018-10-21 12:29:19,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19 WrapperNode [2018-10-21 12:29:19,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-21 12:29:19,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-21 12:29:19,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-21 12:29:19,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-21 12:29:19,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-21 12:29:19,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-21 12:29:19,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-21 12:29:19,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-21 12:29:19,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... [2018-10-21 12:29:19,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-21 12:29:19,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-21 12:29:19,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-21 12:29:19,945 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-21 12:29:19,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-21 12:29:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-21 12:29:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-21 12:29:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-10-21 12:29:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-10-21 12:29:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-21 12:29:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-21 12:29:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-21 12:29:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-21 12:29:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-21 12:29:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-21 12:29:20,588 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-21 12:29:20,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:29:20 BoogieIcfgContainer [2018-10-21 12:29:20,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-21 12:29:20,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-21 12:29:20,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-21 12:29:20,593 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-21 12:29:20,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 12:29:19" (1/3) ... [2018-10-21 12:29:20,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dce713b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:29:20, skipping insertion in model container [2018-10-21 12:29:20,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:29:19" (2/3) ... [2018-10-21 12:29:20,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dce713b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:29:20, skipping insertion in model container [2018-10-21 12:29:20,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:29:20" (3/3) ... [2018-10-21 12:29:20,597 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-10-21 12:29:20,608 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-21 12:29:20,617 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-21 12:29:20,631 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-21 12:29:20,666 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-21 12:29:20,667 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-21 12:29:20,667 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-21 12:29:20,667 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-21 12:29:20,667 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-21 12:29:20,667 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-21 12:29:20,668 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-21 12:29:20,668 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-21 12:29:20,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-21 12:29:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-10-21 12:29:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-21 12:29:20,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:29:20,696 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-21 12:29:20,699 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:29:20,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:29:20,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1294249659, now seen corresponding path program 1 times [2018-10-21 12:29:20,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:29:20,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:29:20,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:29:20,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:29:20,756 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:29:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:29:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:29:20,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:29:20,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-21 12:29:20,837 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:29:20,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-21 12:29:20,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-21 12:29:20,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-21 12:29:20,858 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-10-21 12:29:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:29:20,882 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2018-10-21 12:29:20,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-21 12:29:20,884 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-10-21 12:29:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:29:20,894 INFO L225 Difference]: With dead ends: 42 [2018-10-21 12:29:20,894 INFO L226 Difference]: Without dead ends: 25 [2018-10-21 12:29:20,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-21 12:29:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-21 12:29:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-10-21 12:29:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-21 12:29:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-10-21 12:29:20,937 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2018-10-21 12:29:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:29:20,938 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-10-21 12:29:20,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-21 12:29:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-10-21 12:29:20,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-21 12:29:20,940 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:29:20,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-21 12:29:20,941 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:29:20,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:29:20,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1720438887, now seen corresponding path program 1 times [2018-10-21 12:29:20,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:29:20,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:29:20,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:29:20,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:29:20,943 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:29:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:29:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:29:21,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:29:21,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-21 12:29:21,085 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:29:21,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-21 12:29:21,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-21 12:29:21,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-21 12:29:21,090 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 5 states. [2018-10-21 12:29:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:29:21,178 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2018-10-21 12:29:21,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-21 12:29:21,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-10-21 12:29:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:29:21,179 INFO L225 Difference]: With dead ends: 25 [2018-10-21 12:29:21,180 INFO L226 Difference]: Without dead ends: 0 [2018-10-21 12:29:21,181 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-21 12:29:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-21 12:29:21,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-21 12:29:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-21 12:29:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-21 12:29:21,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-10-21 12:29:21,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:29:21,182 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-21 12:29:21,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-21 12:29:21,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-21 12:29:21,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-21 12:29:21,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-21 12:29:21,227 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-21 12:29:21,227 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-21 12:29:21,227 INFO L425 ceAbstractionStarter]: For program point fooEXIT(lines 11 18) no Hoare annotation was computed. [2018-10-21 12:29:21,227 INFO L428 ceAbstractionStarter]: At program point fooENTRY(lines 11 18) the Hoare annotation is: true [2018-10-21 12:29:21,227 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-21 12:29:21,227 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 11 18) no Hoare annotation was computed. [2018-10-21 12:29:21,228 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 12 18) no Hoare annotation was computed. [2018-10-21 12:29:21,228 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-21 12:29:21,228 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-21 12:29:21,228 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-21 12:29:21,228 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-21 12:29:21,228 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-21 12:29:21,228 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 35) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point L25-2(lines 20 35) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 35) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 35) the Hoare annotation is: true [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-21 12:29:21,229 INFO L425 ceAbstractionStarter]: For program point L30-2(lines 20 35) no Hoare annotation was computed. [2018-10-21 12:29:21,230 INFO L428 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: true [2018-10-21 12:29:21,232 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 33) the Hoare annotation is: (<= main_~x~0 0) [2018-10-21 12:29:21,233 INFO L428 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2018-10-21 12:29:21,233 INFO L425 ceAbstractionStarter]: For program point L28-3(lines 20 35) no Hoare annotation was computed. [2018-10-21 12:29:21,233 INFO L425 ceAbstractionStarter]: For program point L26-2(line 26) no Hoare annotation was computed. [2018-10-21 12:29:21,233 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-21 12:29:21,233 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-21 12:29:21,233 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-21 12:29:21,233 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-21 12:29:21,234 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-21 12:29:21,234 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-21 12:29:21,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 12:29:21 BoogieIcfgContainer [2018-10-21 12:29:21,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-21 12:29:21,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-21 12:29:21,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-21 12:29:21,240 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-21 12:29:21,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:29:20" (3/4) ... [2018-10-21 12:29:21,246 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-21 12:29:21,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-21 12:29:21,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-10-21 12:29:21,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-21 12:29:21,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-21 12:29:21,260 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-21 12:29:21,260 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-21 12:29:21,260 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-21 12:29:21,321 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-21 12:29:21,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-21 12:29:21,323 INFO L168 Benchmark]: Toolchain (without parser) took 1767.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -133.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-21 12:29:21,325 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:29:21,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-21 12:29:21,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:29:21,326 INFO L168 Benchmark]: Boogie Preprocessor took 41.43 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:29:21,327 INFO L168 Benchmark]: RCFGBuilder took 643.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-10-21 12:29:21,327 INFO L168 Benchmark]: TraceAbstraction took 649.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-10-21 12:29:21,337 INFO L168 Benchmark]: Witness Printer took 82.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-21 12:29:21,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.43 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 643.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 649.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 82.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 1 SDslu, 82 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 577 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...