./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/config/AutomizerReach.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_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/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 b9d847f55c059f9ab605062cc4d39bbb07512b65 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:33:46,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:33:46,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:33:46,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:33:46,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:33:46,068 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:33:46,069 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:33:46,071 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:33:46,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:33:46,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:33:46,074 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:33:46,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:33:46,075 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:33:46,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:33:46,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:33:46,078 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:33:46,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:33:46,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:33:46,081 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:33:46,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:33:46,084 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:33:46,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:33:46,088 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:33:46,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:33:46,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:33:46,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:33:46,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:33:46,091 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:33:46,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:33:46,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:33:46,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:33:46,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:33:46,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:33:46,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:33:46,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:33:46,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:33:46,097 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:33:46,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:33:46,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:33:46,110 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:33:46,110 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:33:46,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:33:46,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:33:46,111 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:33:46,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:33:46,112 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:33:46,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:33:46,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:33:46,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:33:46,113 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:33:46,113 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:33:46,113 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:33:46,115 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:33:46,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:33:46,116 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:33:46,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:33:46,117 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_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/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 -> b9d847f55c059f9ab605062cc4d39bbb07512b65 [2018-10-26 23:33:46,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:33:46,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:33:46,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:33:46,170 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:33:46,173 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:33:46,174 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/../../sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-26 23:33:46,232 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/data/6f83f9af6/7db86c2a4d3c4058a305c58d1badb1ba/FLAG49953c010 [2018-10-26 23:33:46,569 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:33:46,570 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/sv-benchmarks/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-26 23:33:46,577 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/data/6f83f9af6/7db86c2a4d3c4058a305c58d1badb1ba/FLAG49953c010 [2018-10-26 23:33:46,587 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/data/6f83f9af6/7db86c2a4d3c4058a305c58d1badb1ba [2018-10-26 23:33:46,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:33:46,590 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:33:46,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:33:46,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:33:46,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:33:46,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1667508d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46, skipping insertion in model container [2018-10-26 23:33:46,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:33:46,620 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:33:46,741 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:33:46,745 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:33:46,760 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:33:46,776 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:33:46,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46 WrapperNode [2018-10-26 23:33:46,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:33:46,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:33:46,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:33:46,777 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:33:46,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... [2018-10-26 23:33:46,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:33:46,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:33:46,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:33:46,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:33:46,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/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 [2018-10-26 23:33:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:33:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:33:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:33:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:33:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:33:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:33:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 23:33:47,316 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:33:47,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:33:47 BoogieIcfgContainer [2018-10-26 23:33:47,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:33:47,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:33:47,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:33:47,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:33:47,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:33:46" (1/3) ... [2018-10-26 23:33:47,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506903e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:33:47, skipping insertion in model container [2018-10-26 23:33:47,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:33:46" (2/3) ... [2018-10-26 23:33:47,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506903e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:33:47, skipping insertion in model container [2018-10-26 23:33:47,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:33:47" (3/3) ... [2018-10-26 23:33:47,324 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-26 23:33:47,333 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:33:47,343 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:33:47,360 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:33:47,387 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:33:47,387 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:33:47,387 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:33:47,388 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:33:47,388 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:33:47,388 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:33:47,388 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:33:47,388 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:33:47,388 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:33:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-10-26 23:33:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:33:47,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:33:47,412 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:33:47,414 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:33:47,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:33:47,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1879298752, now seen corresponding path program 1 times [2018-10-26 23:33:47,424 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:33:47,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:33:47,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:47,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:33:47,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:33:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:33:47,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:33:47,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:33:47,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:33:47,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:33:47,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:33:47,567 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-10-26 23:33:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:33:47,594 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2018-10-26 23:33:47,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:33:47,596 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-26 23:33:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:33:47,604 INFO L225 Difference]: With dead ends: 56 [2018-10-26 23:33:47,605 INFO L226 Difference]: Without dead ends: 25 [2018-10-26 23:33:47,608 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:33:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-26 23:33:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-10-26 23:33:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-26 23:33:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-10-26 23:33:47,645 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2018-10-26 23:33:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:33:47,647 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-10-26 23:33:47,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:33:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-10-26 23:33:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:33:47,648 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:33:47,648 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:33:47,648 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:33:47,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:33:47,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1282794520, now seen corresponding path program 1 times [2018-10-26 23:33:47,649 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:33:47,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:33:47,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:47,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:33:47,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:33:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:33:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:33:47,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:33:47,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:33:47,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:33:47,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:33:47,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:33:47,746 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 4 states. [2018-10-26 23:33:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:33:47,776 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-10-26 23:33:47,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:33:47,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-26 23:33:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:33:47,777 INFO L225 Difference]: With dead ends: 25 [2018-10-26 23:33:47,777 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:33:47,777 INFO L605 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 [2018-10-26 23:33:47,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:33:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:33:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:33:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:33:47,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-10-26 23:33:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:33:47,778 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:33:47,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:33:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:33:47,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:33:47,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:33:47,815 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:33:47,816 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:33:47,816 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:33:47,816 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:33:47,816 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:33:47,817 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:33:47,817 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:33:47,817 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 33) no Hoare annotation was computed. [2018-10-26 23:33:47,817 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2018-10-26 23:33:47,817 INFO L428 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2018-10-26 23:33:47,818 INFO L428 ceAbstractionStarter]: At program point L27-4(lines 27 33) the Hoare annotation is: true [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-10-26 23:33:47,818 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: true [2018-10-26 23:33:47,818 INFO L425 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L428 ceAbstractionStarter]: At program point L18-4(lines 18 20) the Hoare annotation is: true [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L18-5(lines 18 20) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-26 23:33:47,819 INFO L425 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-26 23:33:47,820 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-26 23:33:47,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:33:47 BoogieIcfgContainer [2018-10-26 23:33:47,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:33:47,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:33:47,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:33:47,830 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:33:47,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:33:47" (3/4) ... [2018-10-26 23:33:47,835 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:33:47,841 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:33:47,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:33:47,842 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:33:47,845 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-10-26 23:33:47,846 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-26 23:33:47,846 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:33:47,889 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_da8dd3ee-03f5-43ea-a607-2d3ab0365dff/bin-2019/uautomizer/witness.graphml [2018-10-26 23:33:47,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:33:47,890 INFO L168 Benchmark]: Toolchain (without parser) took 1300.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -97.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,892 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:33:47,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.27 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,893 INFO L168 Benchmark]: Boogie Preprocessor took 30.97 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 939.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,893 INFO L168 Benchmark]: RCFGBuilder took 508.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,895 INFO L168 Benchmark]: TraceAbstraction took 511.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,895 INFO L168 Benchmark]: Witness Printer took 60.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:33:47,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.27 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.97 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 939.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 508.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 511.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 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, 34 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 1 SDslu, 45 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=34occurred 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, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 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...