./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan --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 bf39cb82696559ce2a61c1f997102826529c1f07 .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:59:26,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:59:26,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:59:26,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:59:26,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:59:26,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:59:26,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:59:26,889 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:59:26,890 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:59:26,891 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:59:26,892 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:59:26,892 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:59:26,892 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:59:26,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:59:26,894 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:59:26,894 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:59:26,895 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:59:26,896 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:59:26,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:59:26,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:59:26,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:59:26,900 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:59:26,901 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:59:26,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:59:26,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:59:26,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:59:26,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:59:26,903 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:59:26,903 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:59:26,904 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:59:26,904 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:59:26,904 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:59:26,904 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:59:26,905 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:59:26,905 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:59:26,905 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:59:26,906 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:59:26,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:59:26,913 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:59:26,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:59:26,914 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:59:26,914 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:59:26,914 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:59:26,915 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:59:26,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:59:26,916 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:59:26,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:59:26,916 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:59:26,917 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:59:26,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:59:26,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:59:26,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:59:26,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:59:26,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:59:26,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:59:26,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:59:26,919 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:59:26,919 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan 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 -> bf39cb82696559ce2a61c1f997102826529c1f07 [2018-11-23 13:59:26,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:59:26,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:59:26,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:59:26,951 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:59:26,951 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:59:26,951 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/../../sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-23 13:59:26,986 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/data/13bf61575/455deb164adb412aa9f2553588388b54/FLAGf3471a826 [2018-11-23 13:59:27,287 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:59:27,287 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/sv-benchmarks/c/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-23 13:59:27,291 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/data/13bf61575/455deb164adb412aa9f2553588388b54/FLAGf3471a826 [2018-11-23 13:59:27,299 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/data/13bf61575/455deb164adb412aa9f2553588388b54 [2018-11-23 13:59:27,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:59:27,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:59:27,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:59:27,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:59:27,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:59:27,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125e25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27, skipping insertion in model container [2018-11-23 13:59:27,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:59:27,327 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:59:27,425 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:59:27,428 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:59:27,440 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:59:27,449 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:59:27,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27 WrapperNode [2018-11-23 13:59:27,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:59:27,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:59:27,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:59:27,451 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:59:27,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:59:27,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:59:27,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:59:27,464 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:59:27,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... [2018-11-23 13:59:27,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:59:27,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:59:27,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:59:27,477 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:59:27,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/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 [2018-11-23 13:59:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:59:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:59:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-11-23 13:59:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-11-23 13:59:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:59:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:59:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:59:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:59:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:59:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:59:27,669 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:59:27,669 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:59:27,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:27 BoogieIcfgContainer [2018-11-23 13:59:27,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:59:27,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:59:27,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:59:27,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:59:27,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:59:27" (1/3) ... [2018-11-23 13:59:27,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a47f3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:27, skipping insertion in model container [2018-11-23 13:59:27,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:27" (2/3) ... [2018-11-23 13:59:27,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a47f3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:27, skipping insertion in model container [2018-11-23 13:59:27,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:27" (3/3) ... [2018-11-23 13:59:27,675 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3_true-unreach-call_false-termination.i [2018-11-23 13:59:27,683 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:59:27,687 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:59:27,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:59:27,727 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:59:27,727 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:59:27,727 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:59:27,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:59:27,727 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:59:27,728 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:59:27,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:59:27,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:59:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 13:59:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:59:27,748 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:59:27,749 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:59:27,750 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:59:27,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:59:27,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1783967560, now seen corresponding path program 1 times [2018-11-23 13:59:27,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:59:27,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:59:27,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:59:27,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:59:27,797 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:59:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:59:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:59:27,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:59:27,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:59:27,837 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:59:27,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:59:27,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:59:27,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:59:27,851 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-23 13:59:27,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:59:27,870 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2018-11-23 13:59:27,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:59:27,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 13:59:27,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:59:27,877 INFO L225 Difference]: With dead ends: 35 [2018-11-23 13:59:27,877 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 13:59:27,879 INFO L631 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 [2018-11-23 13:59:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 13:59:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 13:59:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 13:59:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-23 13:59:27,907 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2018-11-23 13:59:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:59:27,907 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-23 13:59:27,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:59:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-23 13:59:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:59:27,908 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:59:27,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:59:27,908 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:59:27,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:59:27,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1698359207, now seen corresponding path program 1 times [2018-11-23 13:59:27,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:59:27,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:59:27,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:59:27,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:59:27,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:59:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:59:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:59:27,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:59:27,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:59:27,970 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:59:27,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:59:27,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:59:27,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:59:27,972 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2018-11-23 13:59:28,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:59:28,013 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-23 13:59:28,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:59:28,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 13:59:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:59:28,014 INFO L225 Difference]: With dead ends: 17 [2018-11-23 13:59:28,014 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:59:28,015 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:59:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:59:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:59:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:59:28,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:59:28,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 13:59:28,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:59:28,016 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:59:28,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:59:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:59:28,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:59:28,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:59:28,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:59:28,047 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:59:28,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:59:28,047 INFO L444 ceAbstractionStarter]: At program point evalENTRY(lines 12 19) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-11-23 13:59:28,047 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 12 19) no Hoare annotation was computed. [2018-11-23 13:59:28,047 INFO L448 ceAbstractionStarter]: For program point evalEXIT(lines 12 19) no Hoare annotation was computed. [2018-11-23 13:59:28,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:59:28,048 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2018-11-23 13:59:28,048 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:59:28,048 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:59:28,048 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-23 13:59:28,048 INFO L444 ceAbstractionStarter]: At program point L27(lines 22 33) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-11-23 13:59:28,048 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-11-23 13:59:28,048 INFO L444 ceAbstractionStarter]: At program point L26-1(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-11-23 13:59:28,048 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 22 33) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L444 ceAbstractionStarter]: At program point L24-1(lines 24 28) the Hoare annotation is: (not (= 0 |old(~x~0)|)) [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 22 33) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 13:59:28,049 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:59:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:59:28 BoogieIcfgContainer [2018-11-23 13:59:28,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:59:28,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:59:28,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:59:28,052 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:59:28,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:27" (3/4) ... [2018-11-23 13:59:28,054 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:59:28,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:59:28,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure eval [2018-11-23 13:59:28,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:59:28,059 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 13:59:28,063 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 13:59:28,063 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:59:28,090 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_52d8d3b5-8598-4e69-b727-3f50cfdc3a17/bin-2019/utaipan/witness.graphml [2018-11-23 13:59:28,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:59:28,091 INFO L168 Benchmark]: Toolchain (without parser) took 789.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -123.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,092 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:59:28,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:59:28,093 INFO L168 Benchmark]: Boogie Preprocessor took 13.09 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,094 INFO L168 Benchmark]: RCFGBuilder took 192.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,094 INFO L168 Benchmark]: TraceAbstraction took 381.75 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,095 INFO L168 Benchmark]: Witness Printer took 38.88 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:59:28,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 12.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.09 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 192.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 381.75 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.88 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: 2.7 MB). Peak memory consumption was 2.7 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, 23 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 14 SDslu, 22 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 12 PreInvPairs, 15 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 380 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...