./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ....................................................................................................................................................................................................................................... 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_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:55:35,938 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:55:35,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:55:35,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:55:35,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:55:35,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:55:35,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:55:35,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:55:35,950 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:55:35,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:55:35,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:55:35,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:55:35,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:55:35,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:55:35,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:55:35,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:55:35,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:55:35,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:55:35,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:55:35,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:55:35,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:55:35,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:55:35,961 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:55:35,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:55:35,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:55:35,962 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:55:35,963 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:55:35,963 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:55:35,964 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:55:35,964 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:55:35,965 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:55:35,965 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:55:35,965 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:55:35,965 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:55:35,966 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:55:35,967 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:55:35,967 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 13:55:35,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:55:35,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:55:35,978 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:55:35,978 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 13:55:35,978 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:55:35,978 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:55:35,978 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:55:35,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:55:35,979 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:55:35,979 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:55:35,979 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:55:35,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:55:35,979 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:55:35,980 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:55:35,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:55:35,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:55:35,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:55:35,982 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:55:35,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:55:35,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:55:35,982 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_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-18 13:55:36,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:55:36,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:55:36,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:55:36,013 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:55:36,014 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:55:36,014 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:36,053 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/472f8617a/87e5a82a847440b98852e22dbdc5509c/FLAG39c765921 [2018-11-18 13:55:36,344 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:55:36,345 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:36,348 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/472f8617a/87e5a82a847440b98852e22dbdc5509c/FLAG39c765921 [2018-11-18 13:55:36,356 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/472f8617a/87e5a82a847440b98852e22dbdc5509c [2018-11-18 13:55:36,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:55:36,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:55:36,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:36,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:55:36,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:55:36,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d0df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36, skipping insertion in model container [2018-11-18 13:55:36,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:55:36,385 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:55:36,502 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:36,505 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:55:36,513 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:36,520 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:55:36,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36 WrapperNode [2018-11-18 13:55:36,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:36,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:55:36,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:55:36,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:55:36,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... [2018-11-18 13:55:36,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:55:36,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:55:36,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:55:36,538 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:55:36,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 [2018-11-18 13:55:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:55:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:55:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:55:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:55:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:55:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:55:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:55:36,701 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:55:36,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:36 BoogieIcfgContainer [2018-11-18 13:55:36,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:55:36,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:55:36,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:55:36,704 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:55:36,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:55:36" (1/3) ... [2018-11-18 13:55:36,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac43d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:36, skipping insertion in model container [2018-11-18 13:55:36,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:36" (2/3) ... [2018-11-18 13:55:36,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac43d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:36, skipping insertion in model container [2018-11-18 13:55:36,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:36" (3/3) ... [2018-11-18 13:55:36,706 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:36,711 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:55:36,715 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:55:36,723 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:55:36,740 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:55:36,740 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:55:36,740 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:55:36,740 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:55:36,740 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:55:36,741 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:55:36,741 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:55:36,741 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:55:36,741 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:55:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 13:55:36,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:55:36,755 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:36,755 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:55:36,757 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:36,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:36,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 13:55:36,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:55:36,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:55:36,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:36,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:36,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:55:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:55:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:55:36,821 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:55:36,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:55:36 BoogieIcfgContainer [2018-11-18 13:55:36,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:55:36,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:55:36,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:55:36,834 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:55:36,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:36" (3/4) ... [2018-11-18 13:55:36,837 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:55:36,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:55:36,837 INFO L168 Benchmark]: Toolchain (without parser) took 479.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:36,839 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:36,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.08 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:36,840 INFO L168 Benchmark]: Boogie Preprocessor took 16.22 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:36,840 INFO L168 Benchmark]: RCFGBuilder took 164.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 947.1 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:36,841 INFO L168 Benchmark]: TraceAbstraction took 131.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:36,841 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:36,844 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.08 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.22 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 164.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 947.1 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.02 ms. Allocated memory is still 1.2 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) VAL [j=0] [L10] __VERIFIER_error() VAL [j=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.0s 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=12occurred 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 0.1.23-5842f4b [2018-11-18 13:55:38,246 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:55:38,247 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:55:38,254 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:55:38,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:55:38,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:55:38,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:55:38,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:55:38,258 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:55:38,259 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:55:38,259 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:55:38,259 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:55:38,260 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:55:38,261 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:55:38,261 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:55:38,262 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:55:38,262 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:55:38,264 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:55:38,268 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:55:38,269 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:55:38,270 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:55:38,271 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:55:38,272 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:55:38,272 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:55:38,273 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:55:38,273 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:55:38,274 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:55:38,274 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:55:38,275 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:55:38,276 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:55:38,276 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:55:38,276 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:55:38,276 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:55:38,276 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:55:38,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:55:38,277 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:55:38,278 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 13:55:38,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:55:38,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:55:38,288 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:55:38,288 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:55:38,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:55:38,289 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:55:38,289 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:55:38,290 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:55:38,291 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:55:38,291 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:55:38,291 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:55:38,291 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:55:38,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:55:38,291 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:55:38,291 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:55:38,292 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:55:38,292 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 13:55:38,292 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:55:38,292 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:55:38,292 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:55:38,292 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_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-18 13:55:38,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:55:38,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:55:38,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:55:38,329 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:55:38,329 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:55:38,329 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:38,363 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/8c1641eeb/3dc17d5368e145748ef8542fed4cfec5/FLAG8de43460e [2018-11-18 13:55:38,754 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:55:38,754 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:38,757 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/8c1641eeb/3dc17d5368e145748ef8542fed4cfec5/FLAG8de43460e [2018-11-18 13:55:38,765 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/data/8c1641eeb/3dc17d5368e145748ef8542fed4cfec5 [2018-11-18 13:55:38,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:55:38,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:55:38,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:38,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:55:38,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:55:38,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b49386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38, skipping insertion in model container [2018-11-18 13:55:38,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:55:38,790 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:55:38,912 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:38,916 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:55:38,926 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:55:38,934 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:55:38,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38 WrapperNode [2018-11-18 13:55:38,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:55:38,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:55:38,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:55:38,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:55:38,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... [2018-11-18 13:55:38,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:55:38,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:55:38,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:55:38,954 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:55:38,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 [2018-11-18 13:55:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:55:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:55:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:55:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:55:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:55:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:55:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:55:39,098 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:55:39,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:39 BoogieIcfgContainer [2018-11-18 13:55:39,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:55:39,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:55:39,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:55:39,100 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:55:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:55:38" (1/3) ... [2018-11-18 13:55:39,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27232d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:39, skipping insertion in model container [2018-11-18 13:55:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:55:38" (2/3) ... [2018-11-18 13:55:39,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27232d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:55:39, skipping insertion in model container [2018-11-18 13:55:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:39" (3/3) ... [2018-11-18 13:55:39,102 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:55:39,110 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:55:39,116 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:55:39,127 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:55:39,143 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:55:39,143 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:55:39,144 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:55:39,144 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:55:39,144 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:55:39,144 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:55:39,144 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:55:39,144 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:55:39,144 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:55:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 13:55:39,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:55:39,158 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:55:39,159 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:55:39,160 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:55:39,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:55:39,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 13:55:39,168 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:55:39,168 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/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 [2018-11-18 13:55:39,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:55:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:55:39,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:55:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:55:39,237 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:55:39,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:55:39,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:55:39,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:55:39,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:55:39,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:55:39,266 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-18 13:55:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:55:39,289 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 13:55:39,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:55:39,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 13:55:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:55:39,296 INFO L225 Difference]: With dead ends: 16 [2018-11-18 13:55:39,296 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:55:39,298 INFO L604 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 [2018-11-18 13:55:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:55:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:55:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:55:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:55:39,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 13:55:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:55:39,319 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:55:39,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:55:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:55:39,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:55:39,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:55:39,352 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 13:55:39,352 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:55:39,352 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:55:39,352 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:55:39,352 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:55:39,352 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:55:39,352 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 2 11) the Hoare annotation is: true [2018-11-18 13:55:39,353 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 13:55:39,353 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-18 13:55:39,353 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-18 13:55:39,353 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 2 11) no Hoare annotation was computed. [2018-11-18 13:55:39,353 INFO L425 ceAbstractionStarter]: For program point L10-3(lines 2 11) no Hoare annotation was computed. [2018-11-18 13:55:39,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:55:39 BoogieIcfgContainer [2018-11-18 13:55:39,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:55:39,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:55:39,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:55:39,356 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:55:39,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:55:39" (3/4) ... [2018-11-18 13:55:39,359 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:55:39,363 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:55:39,364 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:55:39,366 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 13:55:39,366 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:55:39,366 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:55:39,390 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5b8aed00-d6a0-46c7-b213-48013772cc2c/bin-2019/uautomizer/witness.graphml [2018-11-18 13:55:39,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:55:39,390 INFO L168 Benchmark]: Toolchain (without parser) took 623.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:39,391 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:39,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:39,392 INFO L168 Benchmark]: Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:39,393 INFO L168 Benchmark]: RCFGBuilder took 144.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:39,393 INFO L168 Benchmark]: TraceAbstraction took 256.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:39,394 INFO L168 Benchmark]: Witness Printer took 34.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:39,396 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 144.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 256.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 34.57 ms. Allocated memory is still 1.2 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: 10]: 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, 12 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 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=12occurred 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, 96 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...