./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af383046837f49b57572febe7198ecca5fffa750 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af383046837f49b57572febe7198ecca5fffa750 ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:32:23,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:32:23,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:32:23,031 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:32:23,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:32:23,032 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:32:23,033 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:32:23,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:32:23,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:32:23,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:32:23,036 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:32:23,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:32:23,037 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:32:23,038 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:32:23,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:32:23,039 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:32:23,040 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:32:23,041 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:32:23,042 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:32:23,043 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:32:23,044 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:32:23,044 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:32:23,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:32:23,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:32:23,047 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:32:23,048 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:32:23,049 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:32:23,049 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:32:23,050 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:32:23,051 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:32:23,051 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:32:23,051 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:32:23,051 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:32:23,051 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:32:23,052 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:32:23,053 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:32:23,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 00:32:23,064 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:32:23,064 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:32:23,065 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:32:23,065 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:32:23,065 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:32:23,066 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 00:32:23,066 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 00:32:23,067 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:32:23,067 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:32:23,067 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:32:23,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:32:23,068 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:32:23,069 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:32:23,071 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:32:23,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:32:23,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:32:23,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:32:23,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:32:23,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:32:23,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:32:23,073 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:32:23,073 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af383046837f49b57572febe7198ecca5fffa750 [2018-11-23 00:32:23,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:32:23,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:32:23,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:32:23,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:32:23,112 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:32:23,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:23,156 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/339cc0de0/263b1d75b8004b51a89a20d97df443fa/FLAG1378ac352 [2018-11-23 00:32:23,546 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:32:23,547 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:23,551 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/339cc0de0/263b1d75b8004b51a89a20d97df443fa/FLAG1378ac352 [2018-11-23 00:32:23,563 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/339cc0de0/263b1d75b8004b51a89a20d97df443fa [2018-11-23 00:32:23,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:32:23,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:32:23,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:32:23,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:32:23,570 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:32:23,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716fab57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23, skipping insertion in model container [2018-11-23 00:32:23,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:32:23,596 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:32:23,713 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:32:23,714 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:32:23,730 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:32:23,743 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:32:23,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23 WrapperNode [2018-11-23 00:32:23,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:32:23,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:32:23,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:32:23,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:32:23,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:32:23,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:32:23,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:32:23,757 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:32:23,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... [2018-11-23 00:32:23,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:32:23,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:32:23,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:32:23,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:32:23,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:32:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:32:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure f00 [2018-11-23 00:32:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure f00 [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:32:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:32:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:32:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:32:23,932 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:32:23,932 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 00:32:23,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:23 BoogieIcfgContainer [2018-11-23 00:32:23,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:32:23,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:32:23,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:32:23,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:32:23,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:32:23" (1/3) ... [2018-11-23 00:32:23,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba54b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:23, skipping insertion in model container [2018-11-23 00:32:23,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:23" (2/3) ... [2018-11-23 00:32:23,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba54b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:23, skipping insertion in model container [2018-11-23 00:32:23,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:23" (3/3) ... [2018-11-23 00:32:23,936 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:23,944 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:32:23,949 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:32:23,959 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:32:23,976 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:32:23,976 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:32:23,976 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:32:23,976 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:32:23,976 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:32:23,976 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:32:23,977 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:32:23,977 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:32:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 00:32:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 00:32:23,990 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:32:23,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:32:23,992 INFO L423 AbstractCegarLoop]: === Iteration 1 === [f00Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:32:23,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:32:23,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1301757984, now seen corresponding path program 1 times [2018-11-23 00:32:23,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:32:24,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:32:24,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:32:24,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:32:24,025 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:32:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:32:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:32:24,084 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=2147483653, |#NULL.offset|=2147483649, |old(#NULL.base)|=2147483653, |old(#NULL.offset)|=2147483649] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=2147483653, |old(#NULL.offset)|=2147483649] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=2147483653, |old(#NULL.offset)|=2147483649] [?] RET #20#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret2 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [|#NULL.base|=0, |#NULL.offset|=0, |f00_#in~b|=762388928.0] [?] ~a := #in~a;~b := #in~b;~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b);call ~#m~0.base, ~#m~0.offset := #Ultimate.alloc(4);call write~real(~sum~0, ~#m~0.base, ~#m~0.offset, 4);call #t~mem0 := read~int(~#m~0.base, ~#m~0.offset, 4); VAL [f00_~a=2147483651.0, f00_~b=762388928.0, f00_~sum~0=2147483650.0, |#NULL.base|=0, |#NULL.offset|=0, |f00_#in~a|=2147483651.0, |f00_#in~b|=762388928.0, |f00_#t~mem0|=2147483648, |f00_~#m~0.base|=2147483652, |f00_~#m~0.offset|=0] [?] assume !(2147483648 != #t~mem0 % 4294967296);havoc #t~mem0; VAL [f00_~a=2147483651.0, f00_~b=762388928.0, f00_~sum~0=2147483650.0, |#NULL.base|=0, |#NULL.offset|=0, |f00_#in~a|=2147483651.0, |f00_#in~b|=762388928.0, |f00_~#m~0.base|=2147483652, |f00_~#m~0.offset|=0] [?] assume !false; VAL [f00_~a=2147483651.0, f00_~b=762388928.0, f00_~sum~0=2147483650.0, |#NULL.base|=0, |#NULL.offset|=0, |f00_#in~a|=2147483651.0, |f00_#in~b|=762388928.0, |f00_~#m~0.base|=2147483652, |f00_~#m~0.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=2147483653, #NULL.offset=2147483649, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] call ~#m~0.base, ~#m~0.offset := #Ultimate.alloc(4); [L102] call write~real(~sum~0, ~#m~0.base, ~#m~0.offset, 4); [L103] call #t~mem0 := read~int(~#m~0.base, ~#m~0.offset, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, #t~mem0=2147483648, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assume !(2147483648 != #t~mem0 % 4294967296); [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=2147483653, #NULL.offset=2147483649, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=2147483653, old(#NULL.offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] call ~#m~0.base, ~#m~0.offset := #Ultimate.alloc(4); [L102] call write~real(~sum~0, ~#m~0.base, ~#m~0.offset, 4); [L103] call #t~mem0 := read~int(~#m~0.base, ~#m~0.offset, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, #t~mem0=2147483648, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assume !(2147483648 != #t~mem0 % 4294967296); [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL.base=0, #NULL.offset=0, ~#m~0.base=2147483652, ~#m~0.offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2147483653, #NULL!offset=2147483649, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] FCALL call ~#m~0 := #Ultimate.alloc(4); [L102] FCALL call write~real(~sum~0, { base: ~#m~0!base, offset: ~#m~0!offset }, 4); [L103] FCALL call #t~mem0 := read~int({ base: ~#m~0!base, offset: ~#m~0!offset }, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, #t~mem0=2147483648, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] COND TRUE !(2147483648 != #t~mem0 % 4294967296) [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2147483653, #NULL!offset=2147483649, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] FCALL call ~#m~0 := #Ultimate.alloc(4); [L102] FCALL call write~real(~sum~0, { base: ~#m~0!base, offset: ~#m~0!offset }, 4); [L103] FCALL call #t~mem0 := read~int({ base: ~#m~0!base, offset: ~#m~0!offset }, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, #t~mem0=2147483648, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] COND TRUE !(2147483648 != #t~mem0 % 4294967296) [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2147483653, #NULL!offset=2147483649, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] FCALL call ~#m~0 := #Ultimate.alloc(4); [L102] FCALL call write~real(~sum~0, { base: ~#m~0!base, offset: ~#m~0!offset }, 4); [L103] FCALL call #t~mem0 := read~int({ base: ~#m~0!base, offset: ~#m~0!offset }, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, #t~mem0=2147483648, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] COND TRUE !(2147483648 != #t~mem0 % 4294967296) [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=2147483653, #NULL!offset=2147483649, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=2147483653, old(#NULL!offset)=2147483649] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret2 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L111] CALL call #t~ret1 := f00(~someUnaryDOUBLEoperation(7.62388928E8), 7.62388928E8); VAL [#in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0] [L99-L106] ~a := #in~a; [L99-L106] ~b := #in~b; [L100] ~sum~0 := ~someBinaryArithmeticFLOAToperation(~a, ~b); [L101] FCALL call ~#m~0 := #Ultimate.alloc(4); [L102] FCALL call write~real(~sum~0, { base: ~#m~0!base, offset: ~#m~0!offset }, 4); [L103] FCALL call #t~mem0 := read~int({ base: ~#m~0!base, offset: ~#m~0!offset }, 4); VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, #t~mem0=2147483648, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] COND TRUE !(2147483648 != #t~mem0 % 4294967296) [L103] havoc #t~mem0; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L103] assert false; VAL [#in~a=2.147483651E9, #in~b=7.62388928E8, #NULL!base=0, #NULL!offset=0, ~#m~0!base=2147483652, ~#m~0!offset=0, ~a=2.147483651E9, ~b=7.62388928E8, ~sum~0=2.14748365E9] [L111] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) VAL [\old(b)=762388928] [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, m.i=2147483648, sum=2147483650] [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, sum=2147483650] ----- [2018-11-23 00:32:24,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:32:24 BoogieIcfgContainer [2018-11-23 00:32:24,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:32:24,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:32:24,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:32:24,111 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:32:24,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:23" (3/4) ... [2018-11-23 00:32:24,114 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 00:32:24,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:32:24,114 INFO L168 Benchmark]: Toolchain (without parser) took 548.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -123.9 MB). Peak memory consumption was 354.5 kB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,115 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 00:32:24,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.47 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,117 INFO L168 Benchmark]: Boogie Preprocessor took 49.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,117 INFO L168 Benchmark]: RCFGBuilder took 125.66 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,117 INFO L168 Benchmark]: TraceAbstraction took 178.42 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:24,118 INFO L168 Benchmark]: Witness Printer took 2.68 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. [2018-11-23 00:32:24,120 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.47 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 125.66 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 178.42 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L111] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) VAL [\old(b)=762388928] [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, m.i=2147483648, sum=2147483650] [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, sum=2147483650] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 9 NumberOfCodeBlocks, 9 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-aa41828 [2018-11-23 00:32:25,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:32:25,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:32:25,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:32:25,488 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:32:25,488 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:32:25,489 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:32:25,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:32:25,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:32:25,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:32:25,493 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:32:25,493 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:32:25,494 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:32:25,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:32:25,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:32:25,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:32:25,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:32:25,498 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:32:25,499 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:32:25,500 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:32:25,500 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:32:25,502 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:32:25,503 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:32:25,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:32:25,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:32:25,505 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:32:25,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:32:25,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:32:25,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:32:25,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:32:25,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:32:25,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:32:25,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:32:25,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:32:25,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:32:25,510 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:32:25,510 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 00:32:25,520 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:32:25,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:32:25,521 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:32:25,521 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:32:25,521 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:32:25,522 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:32:25,522 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:32:25,522 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:32:25,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:32:25,522 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:32:25,522 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:32:25,522 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 00:32:25,523 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:32:25,524 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:32:25,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:32:25,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:32:25,525 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 00:32:25,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:32:25,525 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 00:32:25,525 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 00:32:25,525 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_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af383046837f49b57572febe7198ecca5fffa750 [2018-11-23 00:32:25,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:32:25,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:32:25,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:32:25,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:32:25,563 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:32:25,563 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:25,597 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/7183fc47c/abde5109f1d44a2fb1bf15b4c8a293d2/FLAG9fcd30f64 [2018-11-23 00:32:25,986 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:32:25,987 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:25,991 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/7183fc47c/abde5109f1d44a2fb1bf15b4c8a293d2/FLAG9fcd30f64 [2018-11-23 00:32:25,999 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/data/7183fc47c/abde5109f1d44a2fb1bf15b4c8a293d2 [2018-11-23 00:32:26,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:32:26,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:32:26,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:32:26,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:32:26,006 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:32:26,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23319cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26, skipping insertion in model container [2018-11-23 00:32:26,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:32:26,034 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:32:26,152 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:32:26,154 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:32:26,167 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:32:26,184 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:32:26,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26 WrapperNode [2018-11-23 00:32:26,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:32:26,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:32:26,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:32:26,186 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:32:26,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:32:26,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:32:26,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:32:26,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:32:26,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... [2018-11-23 00:32:26,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:32:26,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:32:26,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:32:26,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:32:26,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:32:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:32:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure f00 [2018-11-23 00:32:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure f00 [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:32:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 00:32:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:32:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:32:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:32:26,430 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:32:26,452 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:32:26,453 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 00:32:26,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:26 BoogieIcfgContainer [2018-11-23 00:32:26,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:32:26,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:32:26,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:32:26,456 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:32:26,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:32:26" (1/3) ... [2018-11-23 00:32:26,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb7826b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:26, skipping insertion in model container [2018-11-23 00:32:26,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:26" (2/3) ... [2018-11-23 00:32:26,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb7826b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:26, skipping insertion in model container [2018-11-23 00:32:26,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:26" (3/3) ... [2018-11-23 00:32:26,458 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-11-23 00:32:26,466 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:32:26,472 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:32:26,485 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:32:26,505 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:32:26,506 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:32:26,506 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:32:26,506 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:32:26,506 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:32:26,506 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:32:26,506 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:32:26,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:32:26,507 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:32:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 00:32:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 00:32:26,520 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:32:26,521 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:32:26,522 INFO L423 AbstractCegarLoop]: === Iteration 1 === [f00Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:32:26,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:32:26,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1301757984, now seen corresponding path program 1 times [2018-11-23 00:32:26,528 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:32:26,529 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/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 [2018-11-23 00:32:26,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:32:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:32:26,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:32:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:32:26,655 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:32:26,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:32:26,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:32:26,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:32:26,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:32:26,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:32:26,674 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-23 00:32:26,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:32:26,735 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-11-23 00:32:26,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:32:26,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 00:32:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:32:26,740 INFO L225 Difference]: With dead ends: 26 [2018-11-23 00:32:26,740 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:32:26,742 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 00:32:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:32:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:32:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:32:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:32:26,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 00:32:26,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:32:26,757 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:32:26,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:32:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:32:26,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:32:26,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:32:26,788 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:32:26,788 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:32:26,788 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:32:26,788 INFO L448 ceAbstractionStarter]: For program point f00Err0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-11-23 00:32:26,788 INFO L448 ceAbstractionStarter]: For program point f00EXIT(lines 99 106) no Hoare annotation was computed. [2018-11-23 00:32:26,788 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point f00FINAL(lines 99 106) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L451 ceAbstractionStarter]: At program point f00ENTRY(lines 99 106) the Hoare annotation is: true [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 00:32:26,789 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point L111(line 111) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 108 113) the Hoare annotation is: true [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 108 113) no Hoare annotation was computed. [2018-11-23 00:32:26,789 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 108 113) no Hoare annotation was computed. [2018-11-23 00:32:26,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:32:26 BoogieIcfgContainer [2018-11-23 00:32:26,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:32:26,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:32:26,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:32:26,791 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:32:26,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:26" (3/4) ... [2018-11-23 00:32:26,794 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:32:26,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:32:26,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f00 [2018-11-23 00:32:26,798 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:32:26,800 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 00:32:26,800 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 00:32:26,800 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:32:26,823 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0b7fdca4-c0ba-43bf-a2c4-be5bd35cd74c/bin-2019/utaipan/witness.graphml [2018-11-23 00:32:26,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:32:26,824 INFO L168 Benchmark]: Toolchain (without parser) took 822.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:26,825 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-23 00:32:26,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:26,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.47 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:32:26,826 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:32:26,826 INFO L168 Benchmark]: RCFGBuilder took 228.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:26,826 INFO L168 Benchmark]: TraceAbstraction took 337.26 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-23 00:32:26,827 INFO L168 Benchmark]: Witness Printer took 32.56 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. [2018-11-23 00:32:26,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 182.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.47 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 228.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 337.26 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Witness Printer took 32.56 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: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 3 SDslu, 21 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 8 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 9 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...