./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_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_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:13:49,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:13:49,478 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:13:49,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:13:49,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:13:49,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:13:49,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:13:49,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:13:49,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:13:49,491 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:13:49,492 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:13:49,492 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:13:49,493 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:13:49,493 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:13:49,494 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:13:49,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:13:49,495 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:13:49,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:13:49,498 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:13:49,499 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:13:49,500 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:13:49,501 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:13:49,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:13:49,503 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:13:49,503 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:13:49,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:13:49,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:13:49,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:13:49,505 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:13:49,506 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:13:49,506 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:13:49,507 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:13:49,507 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:13:49,507 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:13:49,508 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:13:49,508 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:13:49,508 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-09 23:13:49,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:13:49,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:13:49,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:13:49,519 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:13:49,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:13:49,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:13:49,519 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:13:49,520 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:13:49,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:13:49,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:13:49,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:13:49,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:13:49,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:13:49,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:13:49,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:13:49,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 23:13:49,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:13:49,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 23:13:49,523 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_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-11-09 23:13:49,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:13:49,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:13:49,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:13:49,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:13:49,558 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:13:49,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:49,594 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/5703c1163/334a4d664fc84b6e881f90db10f27883/FLAGbbd6978b3 [2018-11-09 23:13:49,911 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:13:49,912 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:49,915 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/5703c1163/334a4d664fc84b6e881f90db10f27883/FLAGbbd6978b3 [2018-11-09 23:13:49,926 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/5703c1163/334a4d664fc84b6e881f90db10f27883 [2018-11-09 23:13:49,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:13:49,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 23:13:49,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:13:49,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:13:49,932 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:13:49,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:49" (1/1) ... [2018-11-09 23:13:49,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:49, skipping insertion in model container [2018-11-09 23:13:49,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:49" (1/1) ... [2018-11-09 23:13:49,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:13:49,949 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:13:50,044 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:13:50,047 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:13:50,056 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:13:50,064 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:13:50,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50 WrapperNode [2018-11-09 23:13:50,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:13:50,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:13:50,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:13:50,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:13:50,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... [2018-11-09 23:13:50,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:13:50,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:13:50,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:13:50,086 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:13:50,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 [2018-11-09 23:13:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 23:13:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:13:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 23:13:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 23:13:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 23:13:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 23:13:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:13:50,238 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:13:50,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:50 BoogieIcfgContainer [2018-11-09 23:13:50,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:13:50,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 23:13:50,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 23:13:50,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 23:13:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:13:49" (1/3) ... [2018-11-09 23:13:50,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d46fb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:50, skipping insertion in model container [2018-11-09 23:13:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:50" (2/3) ... [2018-11-09 23:13:50,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d46fb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:50, skipping insertion in model container [2018-11-09 23:13:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:50" (3/3) ... [2018-11-09 23:13:50,244 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:50,249 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 23:13:50,255 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 23:13:50,264 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 23:13:50,283 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:13:50,283 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 23:13:50,283 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 23:13:50,284 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 23:13:50,284 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:13:50,284 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:13:50,284 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 23:13:50,284 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:13:50,284 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 23:13:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-09 23:13:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-09 23:13:50,302 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:13:50,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:13:50,305 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:13:50,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:13:50,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-09 23:13:50,311 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:13:50,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:13:50,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:13:50,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:13:50,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:13:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:13:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:13:50,387 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-09 23:13:50,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:13:50 BoogieIcfgContainer [2018-11-09 23:13:50,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 23:13:50,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:13:50,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:13:50,401 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:13:50,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:50" (3/4) ... [2018-11-09 23:13:50,404 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 23:13:50,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:13:50,405 INFO L168 Benchmark]: Toolchain (without parser) took 476.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:50,406 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:50,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:50,407 INFO L168 Benchmark]: Boogie Preprocessor took 20.57 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:50,407 INFO L168 Benchmark]: RCFGBuilder took 153.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:50,408 INFO L168 Benchmark]: TraceAbstraction took 161.76 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:50,408 INFO L168 Benchmark]: Witness Printer took 3.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:50,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.57 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 153.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 161.76 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; VAL [f=0, fp=0] [L9] COND TRUE !(d == fp) VAL [f=0, fp=0] [L9] __VERIFIER_error() VAL [f=0, fp=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:13:51,799 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:13:51,800 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:13:51,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:13:51,810 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:13:51,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:13:51,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:13:51,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:13:51,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:13:51,814 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:13:51,815 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:13:51,815 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:13:51,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:13:51,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:13:51,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:13:51,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:13:51,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:13:51,819 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:13:51,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:13:51,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:13:51,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:13:51,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:13:51,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:13:51,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:13:51,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:13:51,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:13:51,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:13:51,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:13:51,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:13:51,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:13:51,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:13:51,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:13:51,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:13:51,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:13:51,830 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:13:51,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:13:51,830 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-09 23:13:51,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:13:51,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:13:51,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:13:51,842 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:13:51,842 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:13:51,842 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:13:51,842 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:13:51,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:13:51,843 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:13:51,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:13:51,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 23:13:51,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-09 23:13:51,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:13:51,846 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-09 23:13:51,846 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-09 23:13:51,846 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_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-11-09 23:13:51,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:13:51,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:13:51,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:13:51,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:13:51,890 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:13:51,891 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:51,932 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/01331952c/533e7cb1ac334818afc35cb4fffbb9b2/FLAG69ab904d9 [2018-11-09 23:13:52,246 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:13:52,247 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:52,250 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/01331952c/533e7cb1ac334818afc35cb4fffbb9b2/FLAG69ab904d9 [2018-11-09 23:13:52,259 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/data/01331952c/533e7cb1ac334818afc35cb4fffbb9b2 [2018-11-09 23:13:52,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:13:52,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 23:13:52,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:13:52,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:13:52,265 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:13:52,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aab16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52, skipping insertion in model container [2018-11-09 23:13:52,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:13:52,283 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:13:52,384 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:13:52,388 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:13:52,400 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:13:52,410 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:13:52,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52 WrapperNode [2018-11-09 23:13:52,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:13:52,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:13:52,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:13:52,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:13:52,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... [2018-11-09 23:13:52,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:13:52,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:13:52,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:13:52,429 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:13:52,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/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 [2018-11-09 23:13:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 23:13:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:13:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 23:13:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 23:13:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 23:13:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 23:13:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:13:52,582 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:13:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:52 BoogieIcfgContainer [2018-11-09 23:13:52,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:13:52,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 23:13:52,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 23:13:52,586 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 23:13:52,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:13:52" (1/3) ... [2018-11-09 23:13:52,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787ecdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:52, skipping insertion in model container [2018-11-09 23:13:52,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:52" (2/3) ... [2018-11-09 23:13:52,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787ecdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:52, skipping insertion in model container [2018-11-09 23:13:52,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:52" (3/3) ... [2018-11-09 23:13:52,589 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-11-09 23:13:52,596 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 23:13:52,602 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 23:13:52,614 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 23:13:52,634 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:13:52,635 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 23:13:52,635 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 23:13:52,635 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 23:13:52,635 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:13:52,635 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:13:52,635 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 23:13:52,635 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:13:52,636 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 23:13:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-09 23:13:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-09 23:13:52,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 23:13:52,650 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:13:52,652 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 23:13:52,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:13:52,656 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-09 23:13:52,658 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 23:13:52,659 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-09 23:13:52,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:13:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:13:52,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:13:52,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:13:52,742 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 23:13:52,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:13:52,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-09 23:13:52,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 23:13:52,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 23:13:52,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 23:13:52,766 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-11-09 23:13:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:13:52,782 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-09 23:13:52,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 23:13:52,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-09 23:13:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 23:13:52,788 INFO L225 Difference]: With dead ends: 18 [2018-11-09 23:13:52,788 INFO L226 Difference]: Without dead ends: 0 [2018-11-09 23:13:52,790 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 23:13:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-09 23:13:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-09 23:13:52,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-09 23:13:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 23:13:52,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-09 23:13:52,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 23:13:52,805 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:13:52,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 23:13:52,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-09 23:13:52,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 23:13:52,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-09 23:13:52,839 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-09 23:13:52,839 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-09 23:13:52,839 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-09 23:13:52,839 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-09 23:13:52,839 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-09 23:13:52,840 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-09 23:13:52,840 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 12) the Hoare annotation is: true [2018-11-09 23:13:52,840 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 3 12) no Hoare annotation was computed. [2018-11-09 23:13:52,840 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-09 23:13:52,840 INFO L425 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-09 23:13:52,840 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 12) no Hoare annotation was computed. [2018-11-09 23:13:52,841 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-09 23:13:52,841 INFO L425 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-09 23:13:52,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:13:52 BoogieIcfgContainer [2018-11-09 23:13:52,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 23:13:52,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:13:52,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:13:52,844 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:13:52,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:52" (3/4) ... [2018-11-09 23:13:52,847 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 23:13:52,853 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-09 23:13:52,854 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-09 23:13:52,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-09 23:13:52,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-09 23:13:52,857 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 23:13:52,881 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_890e4d28-d178-4a05-9d8f-b9c2d7132e69/bin-2019/uautomizer/witness.graphml [2018-11-09 23:13:52,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:13:52,882 INFO L168 Benchmark]: Toolchain (without parser) took 620.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -126.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:52,883 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-09 23:13:52,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.33 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:52,883 INFO L168 Benchmark]: Boogie Preprocessor took 17.71 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:52,884 INFO L168 Benchmark]: RCFGBuilder took 154.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:52,885 INFO L168 Benchmark]: TraceAbstraction took 259.66 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:13:52,885 INFO L168 Benchmark]: Witness Printer took 37.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:13:52,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 148.33 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.71 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 154.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 259.66 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...