./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c --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_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edcc597a46f9ad79563531282ca675b8b1d7c4bf .................................................................................................................................................................................................................................................................................................................................. 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 07:14:50,309 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:14:50,310 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:14:50,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:14:50,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:14:50,319 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:14:50,320 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:14:50,321 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:14:50,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:14:50,323 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:14:50,324 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:14:50,324 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:14:50,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:14:50,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:14:50,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:14:50,326 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:14:50,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:14:50,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:14:50,329 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:14:50,330 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:14:50,331 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:14:50,332 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:14:50,334 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:14:50,334 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:14:50,334 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:14:50,335 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:14:50,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:14:50,336 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:14:50,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:14:50,337 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:14:50,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:14:50,338 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:14:50,338 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:14:50,338 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:14:50,339 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:14:50,339 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:14:50,339 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:14:50,349 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:14:50,350 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:14:50,350 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:14:50,350 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:14:50,351 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:14:50,351 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:14:50,351 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:14:50,351 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:14:50,351 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:14:50,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:14:50,353 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:14:50,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:14:50,354 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:14:50,354 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer 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 -> Automizer 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 -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2018-11-23 07:14:50,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:14:50,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:14:50,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:14:50,391 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:14:50,391 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:14:50,392 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 07:14:50,437 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/data/206c7cc45/389c455add234bd7b47067a63971ac32/FLAGda847abdf [2018-11-23 07:14:50,755 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:14:50,755 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 07:14:50,759 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/data/206c7cc45/389c455add234bd7b47067a63971ac32/FLAGda847abdf [2018-11-23 07:14:51,195 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/data/206c7cc45/389c455add234bd7b47067a63971ac32 [2018-11-23 07:14:51,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:14:51,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:14:51,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:14:51,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:14:51,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:14:51,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7991b48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51, skipping insertion in model container [2018-11-23 07:14:51,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:14:51,224 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:14:51,349 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:14:51,352 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:14:51,363 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:14:51,372 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:14:51,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51 WrapperNode [2018-11-23 07:14:51,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:14:51,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:14:51,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:14:51,373 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:14:51,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:14:51,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:14:51,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:14:51,394 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:14:51,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... [2018-11-23 07:14:51,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:14:51,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:14:51,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:14:51,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:14:51,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/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 07:14:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:14:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:14:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:14:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:14:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:14:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:14:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2018-11-23 07:14:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2018-11-23 07:14:51,660 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:14:51,660 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:14:51,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:14:51 BoogieIcfgContainer [2018-11-23 07:14:51,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:14:51,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:14:51,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:14:51,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:14:51,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:14:51" (1/3) ... [2018-11-23 07:14:51,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fda4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:14:51, skipping insertion in model container [2018-11-23 07:14:51,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:14:51" (2/3) ... [2018-11-23 07:14:51,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fda4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:14:51, skipping insertion in model container [2018-11-23 07:14:51,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:14:51" (3/3) ... [2018-11-23 07:14:51,669 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 07:14:51,679 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:14:51,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:14:51,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:14:51,734 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:14:51,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:14:51,734 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:14:51,735 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:14:51,735 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:14:51,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:14:51,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:14:51,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:14:51,735 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:14:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-23 07:14:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 07:14:51,759 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:14:51,760 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:14:51,762 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:14:51,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:14:51,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1590359645, now seen corresponding path program 1 times [2018-11-23 07:14:51,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:14:51,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:14:51,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:14:51,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:14:51,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:14:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:14:52,024 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 07:14:52,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:14:52,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:14:52,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:14:52,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:14:52,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:14:52,040 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2018-11-23 07:14:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:14:52,159 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-23 07:14:52,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:14:52,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-23 07:14:52,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:14:52,169 INFO L225 Difference]: With dead ends: 34 [2018-11-23 07:14:52,169 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 07:14:52,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:14:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 07:14:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 07:14:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 07:14:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-23 07:14:52,207 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-11-23 07:14:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:14:52,207 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-23 07:14:52,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:14:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-23 07:14:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 07:14:52,209 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:14:52,209 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:14:52,209 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:14:52,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:14:52,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2121223720, now seen corresponding path program 1 times [2018-11-23 07:14:52,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:14:52,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:14:52,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:14:52,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:14:52,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:14:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:14:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 07:14:52,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:14:52,361 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:14:52,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:14:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:14:52,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:14:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 07:14:52,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:14:52,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-23 07:14:52,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 07:14:52,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 07:14:52,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:14:52,491 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 11 states. [2018-11-23 07:14:52,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:14:52,634 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-11-23 07:14:52,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:14:52,635 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-23 07:14:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:14:52,635 INFO L225 Difference]: With dead ends: 20 [2018-11-23 07:14:52,635 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:14:52,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-23 07:14:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:14:52,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:14:52,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:14:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:14:52,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-23 07:14:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:14:52,638 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:14:52,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 07:14:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:14:52,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:14:52,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:14:52,684 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 07:14:52,684 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:14:52,684 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:14:52,684 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:14:52,684 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:14:52,685 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:14:52,685 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-11-23 07:14:52,685 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-23 07:14:52,685 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true [2018-11-23 07:14:52,685 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed. [2018-11-23 07:14:52,685 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-11-23 07:14:52,685 INFO L451 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2018-11-23 07:14:52,686 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-23 07:14:52,686 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed. [2018-11-23 07:14:52,686 INFO L444 ceAbstractionStarter]: At program point L19-2(line 19) the Hoare annotation is: (and (<= |f91_#in~x| f91_~x) (<= f91_~x |f91_#in~x|) (<= |f91_#t~ret0| 101) (<= f91_~x 100)) [2018-11-23 07:14:52,686 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-23 07:14:52,686 INFO L448 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-11-23 07:14:52,686 INFO L451 ceAbstractionStarter]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2018-11-23 07:14:52,686 INFO L448 ceAbstractionStarter]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2018-11-23 07:14:52,687 INFO L444 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= |f91_#in~x| f91_~x) (<= f91_~x |f91_#in~x|) (<= f91_~x 100)) [2018-11-23 07:14:52,687 INFO L448 ceAbstractionStarter]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2018-11-23 07:14:52,687 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-23 07:14:52,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:14:52 BoogieIcfgContainer [2018-11-23 07:14:52,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:14:52,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:14:52,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:14:52,691 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:14:52,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:14:51" (3/4) ... [2018-11-23 07:14:52,694 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:14:52,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:14:52,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:14:52,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2018-11-23 07:14:52,705 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 07:14:52,705 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 07:14:52,705 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:14:52,740 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f448dca0-8650-4f60-b576-d8da3a54d347/bin-2019/uautomizer/witness.graphml [2018-11-23 07:14:52,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:14:52,741 INFO L168 Benchmark]: Toolchain (without parser) took 1543.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 959.8 MB in the beginning and 1.0 GB in the end (delta: -63.3 MB). Peak memory consumption was 77.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,742 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:14:52,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.07 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.79 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:14:52,743 INFO L168 Benchmark]: Boogie Preprocessor took 17.96 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,744 INFO L168 Benchmark]: RCFGBuilder took 248.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,744 INFO L168 Benchmark]: TraceAbstraction took 1028.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,745 INFO L168 Benchmark]: Witness Printer took 50.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:14:52,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.07 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 20.79 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.96 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1028.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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: 30]: 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 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 15 SDslu, 110 SDs, 0 SdLazy, 130 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s 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, 14 PreInvPairs, 14 NumberOfFragments, 29 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 5064 SizeOfPredicates, 5 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 16/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...