./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/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 b9d847f55c059f9ab605062cc4d39bbb07512b65 .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:47:30,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:47:30,322 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:47:30,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:47:30,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:47:30,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:47:30,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:47:30,333 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:47:30,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:47:30,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:47:30,335 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:47:30,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:47:30,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:47:30,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:47:30,338 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:47:30,339 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:47:30,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:47:30,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:47:30,342 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:47:30,343 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:47:30,344 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:47:30,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:47:30,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:47:30,346 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:47:30,346 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:47:30,346 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:47:30,347 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:47:30,347 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:47:30,348 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:47:30,348 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:47:30,349 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:47:30,349 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:47:30,349 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:47:30,349 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:47:30,350 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:47:30,350 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:47:30,350 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:47:30,358 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:47:30,358 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:47:30,359 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:47:30,359 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:47:30,359 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:47:30,359 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:47:30,360 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:47:30,361 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:47:30,361 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:47:30,361 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:47:30,362 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:47:30,363 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:47:30,363 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:47:30,363 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:47:30,363 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:47:30,363 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:47:30,363 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:47:30,363 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:47:30,364 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:47:30,364 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_8a114b7b-8e57-4d11-b77e-092932d4c087/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 -> b9d847f55c059f9ab605062cc4d39bbb07512b65 [2018-12-08 23:47:30,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:47:30,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:47:30,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:47:30,397 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:47:30,397 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:47:30,398 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/../../sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-12-08 23:47:30,431 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/data/44e63e359/7a56f801a2bc4c71930c65f93e2a4399/FLAG7c6bb8533 [2018-12-08 23:47:30,835 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:47:30,835 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-12-08 23:47:30,839 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/data/44e63e359/7a56f801a2bc4c71930c65f93e2a4399/FLAG7c6bb8533 [2018-12-08 23:47:30,846 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/data/44e63e359/7a56f801a2bc4c71930c65f93e2a4399 [2018-12-08 23:47:30,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:47:30,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:47:30,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:30,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:47:30,851 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:47:30,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:30,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56acabfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30, skipping insertion in model container [2018-12-08 23:47:30,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:30,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:47:30,871 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:47:30,963 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:30,965 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:47:30,977 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:30,988 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:47:30,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30 WrapperNode [2018-12-08 23:47:30,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:30,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:30,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:47:30,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:47:30,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:30,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:31,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:47:31,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:47:31,002 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:47:31,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... [2018-12-08 23:47:31,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:47:31,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:47:31,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:47:31,047 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:47:31,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/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 [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:47:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:47:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:47:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:47:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 23:47:31,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 23:47:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:47:31,187 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:47:31,187 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 23:47:31,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:31 BoogieIcfgContainer [2018-12-08 23:47:31,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:47:31,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:47:31,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:47:31,190 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:47:31,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:47:30" (1/3) ... [2018-12-08 23:47:31,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b1b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:47:31, skipping insertion in model container [2018-12-08 23:47:31,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:30" (2/3) ... [2018-12-08 23:47:31,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b1b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:47:31, skipping insertion in model container [2018-12-08 23:47:31,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:31" (3/3) ... [2018-12-08 23:47:31,193 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-12-08 23:47:31,202 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:47:31,208 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:47:31,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:47:31,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:47:31,247 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:47:31,247 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:47:31,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:47:31,247 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:47:31,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:47:31,247 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:47:31,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:47:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-12-08 23:47:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:47:31,262 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:31,263 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:31,264 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:47:31,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:31,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1522547275, now seen corresponding path program 1 times [2018-12-08 23:47:31,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:31,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:31,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:31,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:31,297 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:31,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:31,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:47:31,341 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:31,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 23:47:31,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 23:47:31,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:47:31,352 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-12-08 23:47:31,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:31,364 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2018-12-08 23:47:31,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:47:31,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-12-08 23:47:31,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:31,370 INFO L225 Difference]: With dead ends: 36 [2018-12-08 23:47:31,370 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 23:47:31,372 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 [2018-12-08 23:47:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 23:47:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 23:47:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 23:47:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-12-08 23:47:31,391 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-12-08 23:47:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:31,392 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-12-08 23:47:31,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 23:47:31,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-12-08 23:47:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:47:31,392 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:31,392 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:31,392 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:47:31,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:31,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1742365231, now seen corresponding path program 1 times [2018-12-08 23:47:31,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:31,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:31,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:31,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:31,394 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:31,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:31,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 23:47:31,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:31,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:47:31,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:47:31,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:47:31,441 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2018-12-08 23:47:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:31,454 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-12-08 23:47:31,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:47:31,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-08 23:47:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:31,455 INFO L225 Difference]: With dead ends: 15 [2018-12-08 23:47:31,455 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:47:31,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:47:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:47:31,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:47:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:47:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:47:31,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-08 23:47:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:31,456 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:47:31,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:47:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:47:31,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:47:31,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 23:47:31,471 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:47:31,471 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:47:31,472 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:47:31,472 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:47:31,472 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 23:47:31,472 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:47:31,472 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:47:31,472 INFO L451 ceAbstractionStarter]: At program point L27-2(lines 27 33) the Hoare annotation is: true [2018-12-08 23:47:31,472 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2018-12-08 23:47:31,472 INFO L451 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2018-12-08 23:47:31,472 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2018-12-08 23:47:31,473 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: true [2018-12-08 23:47:31,473 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2018-12-08 23:47:31,473 INFO L451 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: true [2018-12-08 23:47:31,473 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2018-12-08 23:47:31,473 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-12-08 23:47:31,473 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-12-08 23:47:31,473 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-12-08 23:47:31,473 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-12-08 23:47:31,474 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-12-08 23:47:31,474 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-12-08 23:47:31,474 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-12-08 23:47:31,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:47:31 BoogieIcfgContainer [2018-12-08 23:47:31,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:47:31,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:47:31,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:47:31,478 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:47:31,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:31" (3/4) ... [2018-12-08 23:47:31,481 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:47:31,486 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:47:31,486 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:47:31,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-08 23:47:31,490 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-08 23:47:31,490 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 23:47:31,490 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:47:31,515 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8a114b7b-8e57-4d11-b77e-092932d4c087/bin-2019/utaipan/witness.graphml [2018-12-08 23:47:31,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:47:31,515 INFO L168 Benchmark]: Toolchain (without parser) took 666.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -101.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,516 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-08 23:47:31,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.70 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.23 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:31,517 INFO L168 Benchmark]: Boogie Preprocessor took 44.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,517 INFO L168 Benchmark]: RCFGBuilder took 140.62 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,517 INFO L168 Benchmark]: TraceAbstraction took 290.24 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,517 INFO L168 Benchmark]: Witness Printer took 36.68 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:31,519 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.70 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 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 13.23 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 140.62 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 290.24 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.68 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 25 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 8 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 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...