./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:34,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:34,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:34,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:34,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:34,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:34,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:34,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:34,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:34,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:34,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:34,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:34,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:34,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:34,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:34,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:34,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:34,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:34,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:34,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:34,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:34,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:34,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:34,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:34,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:34,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:34,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:34,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:34,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:34,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:34,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:34,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:34,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:34,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:34,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:34,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:34,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:34,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:34,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:34,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:34,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:34,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:34,961 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:34,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:34,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:34,962 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:34,962 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:34,962 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:34,962 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:34,962 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:34,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:34,963 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:34,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:34,963 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:34,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:34,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:34,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:34,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:34,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:34,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:34,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:34,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:34,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:34,966 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:34,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:34,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:34,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:34,967 INFO L138 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_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-10-22 11:21:34,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:34,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:35,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:35,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:35,005 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:35,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 11:21:35,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/ea23f918d/700eedc086ed49f1b5c3e8a23b369797/FLAGd754add1f [2019-10-22 11:21:35,400 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:35,400 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 11:21:35,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/ea23f918d/700eedc086ed49f1b5c3e8a23b369797/FLAGd754add1f [2019-10-22 11:21:35,413 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/ea23f918d/700eedc086ed49f1b5c3e8a23b369797 [2019-10-22 11:21:35,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:35,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:35,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:35,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:35,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:35,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8d7d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35, skipping insertion in model container [2019-10-22 11:21:35,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,429 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:35,441 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:35,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:35,593 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:35,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:35,679 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:35,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35 WrapperNode [2019-10-22 11:21:35,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:35,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:35,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:35,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:35,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:35,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:35,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:35,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:35,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... [2019-10-22 11:21:35,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:35,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:35,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:35,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:35,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 [2019-10-22 11:21:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:35,946 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:35,946 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:21:35,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:35 BoogieIcfgContainer [2019-10-22 11:21:35,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:35,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:35,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:35,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:35,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:35" (1/3) ... [2019-10-22 11:21:35,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6799e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:35, skipping insertion in model container [2019-10-22 11:21:35,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:35" (2/3) ... [2019-10-22 11:21:35,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6799e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:35, skipping insertion in model container [2019-10-22 11:21:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:35" (3/3) ... [2019-10-22 11:21:35,953 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-10-22 11:21:35,961 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:35,968 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:35,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:35,999 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:35,999 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:35,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:35,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:35,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:35,999 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:35,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:35,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 11:21:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:21:36,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:36,017 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:21:36,019 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:36,024 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:21:36,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:36,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076731078] [2019-10-22 11:21:36,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:36,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:36,125 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:21:36,126 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:21:36,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:36 BoogieIcfgContainer [2019-10-22 11:21:36,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:36,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:36,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:36,141 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:36,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:35" (3/4) ... [2019-10-22 11:21:36,145 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:21:36,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:36,149 INFO L168 Benchmark]: Toolchain (without parser) took 729.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:36,149 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:36,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:36,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:36,151 INFO L168 Benchmark]: Boogie Preprocessor took 16.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:36,152 INFO L168 Benchmark]: RCFGBuilder took 219.08 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:36,152 INFO L168 Benchmark]: TraceAbstraction took 192.93 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:36,153 INFO L168 Benchmark]: Witness Printer took 4.10 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. [2019-10-22 11:21:36,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 219.08 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 192.93 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 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 someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; [L10] COND TRUE !(ulpdiff == 0x1p-126f) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-10-22 11:21:38,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:38,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:38,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:38,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:38,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:38,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:38,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:38,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:38,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:38,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:38,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:38,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:38,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:38,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:38,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:38,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:38,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:38,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:38,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:38,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:38,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:38,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:38,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:38,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:38,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:38,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:38,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:38,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:38,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:38,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:38,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:38,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:38,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:38,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:38,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:38,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:38,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:38,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:38,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:38,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:38,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:38,171 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:38,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:38,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:38,172 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:38,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:38,172 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:38,172 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:38,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:38,173 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:38,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:38,173 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:38,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:38,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:38,175 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:38,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:38,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:38,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:38,176 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:38,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:38,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:38,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:38,177 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-10-22 11:21:38,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:38,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:38,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:38,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:38,222 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:38,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 11:21:38,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/c6fa761ed/206c3ce123d348e8ae5c57458110a0ef/FLAGb61014b9e [2019-10-22 11:21:38,669 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:38,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 11:21:38,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/c6fa761ed/206c3ce123d348e8ae5c57458110a0ef/FLAGb61014b9e [2019-10-22 11:21:38,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/data/c6fa761ed/206c3ce123d348e8ae5c57458110a0ef [2019-10-22 11:21:38,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:38,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:38,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:38,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:38,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:38,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd4e187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38, skipping insertion in model container [2019-10-22 11:21:38,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,713 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:38,728 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:38,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:38,922 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:38,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:38,970 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:38,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38 WrapperNode [2019-10-22 11:21:38,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:38,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:38,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:38,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:39,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:39,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:39,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:39,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:39,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:39,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:39,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:39,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:39,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:39,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 [2019-10-22 11:21:39,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:39,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:39,668 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:21:39,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:39 BoogieIcfgContainer [2019-10-22 11:21:39,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:39,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:39,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:39,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:39,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:38" (1/3) ... [2019-10-22 11:21:39,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68018ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:39, skipping insertion in model container [2019-10-22 11:21:39,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (2/3) ... [2019-10-22 11:21:39,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68018ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:39, skipping insertion in model container [2019-10-22 11:21:39,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:39" (3/3) ... [2019-10-22 11:21:39,683 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-10-22 11:21:39,709 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:39,715 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:39,734 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:39,759 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:39,759 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:39,759 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:39,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:39,760 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:39,760 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:39,760 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:39,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 11:21:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:21:39,776 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,777 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:21:39,779 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,784 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:21:39,792 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:39,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241753722] [2019-10-22 11:21:39,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/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 [2019-10-22 11:21:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:21:39,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:40,055 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:40,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241753722] [2019-10-22 11:21:40,110 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:40,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:40,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754216603] [2019-10-22 11:21:40,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:40,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:40,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:40,125 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-10-22 11:21:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:40,184 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-22 11:21:40,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:40,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:21:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:40,192 INFO L225 Difference]: With dead ends: 28 [2019-10-22 11:21:40,192 INFO L226 Difference]: Without dead ends: 10 [2019-10-22 11:21:40,194 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-10-22 11:21:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-10-22 11:21:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 11:21:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-10-22 11:21:40,219 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 3 [2019-10-22 11:21:40,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:40,219 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-10-22 11:21:40,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-10-22 11:21:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:21:40,220 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:40,220 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:21:40,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:21:40,421 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:40,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:40,421 INFO L82 PathProgramCache]: Analyzing trace with hash 29802020, now seen corresponding path program 1 times [2019-10-22 11:21:40,422 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:40,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59869599] [2019-10-22 11:21:40,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 11:21:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:40,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:40,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:42,868 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 19 [2019-10-22 11:21:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:43,189 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:44,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59869599] [2019-10-22 11:21:44,395 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:44,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:21:44,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900187546] [2019-10-22 11:21:44,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:44,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:44,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:44,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:44,397 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 4 states. [2019-10-22 11:21:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:45,272 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 11:21:45,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:45,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 11:21:45,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:45,273 INFO L225 Difference]: With dead ends: 10 [2019-10-22 11:21:45,273 INFO L226 Difference]: Without dead ends: 8 [2019-10-22 11:21:45,274 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-10-22 11:21:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 11:21:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 11:21:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-10-22 11:21:45,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 5 [2019-10-22 11:21:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:45,276 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-10-22 11:21:45,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-10-22 11:21:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:21:45,277 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:45,277 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:45,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:21:45,478 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:45,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1424904153, now seen corresponding path program 1 times [2019-10-22 11:21:45,479 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:45,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894599354] [2019-10-22 11:21:45,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 11:21:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:45,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:21:45,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:45,904 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:46,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894599354] [2019-10-22 11:21:46,006 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:21:46,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137770373] [2019-10-22 11:21:46,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:46,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:46,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:46,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:46,008 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 4 states. [2019-10-22 11:21:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,083 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-10-22 11:21:46,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:46,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:21:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,083 INFO L225 Difference]: With dead ends: 8 [2019-10-22 11:21:46,083 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:46,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:46,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:46,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 11:21:46,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,085 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:46,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:46,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:46,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:46,285 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:21:46,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:46,334 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:46,334 INFO L443 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-10-22 11:21:46,334 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-22 11:21:46,334 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 26 34) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 11:21:46,335 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-22 11:21:46,335 INFO L443 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-10-22 11:21:46,335 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 15 24) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)))) (and (fp.eq ULTIMATE.start_bugBrokenOut_~ulpdiff~1 .cse0) (fp.eq ULTIMATE.start_bug_~ulpdiff~0 .cse0))) [2019-10-22 11:21:46,335 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2019-10-22 11:21:46,335 INFO L439 ceAbstractionStarter]: At program point L46(lines 36 47) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 11:21:46,335 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-10-22 11:21:46,336 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 5 13) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 11:21:46,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,345 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,346 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,346 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,352 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,353 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:46 BoogieIcfgContainer [2019-10-22 11:21:46,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:46,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:46,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:46,355 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:46,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:39" (3/4) ... [2019-10-22 11:21:46,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:46,368 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 11:21:46,368 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:46,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_59c6b5c3-99ec-4c55-8d69-df3e05eda68b/bin/utaipan/witness.graphml [2019-10-22 11:21:46,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:46,410 INFO L168 Benchmark]: Toolchain (without parser) took 7716.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,410 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:46,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -241.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,412 INFO L168 Benchmark]: Boogie Preprocessor took 28.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,412 INFO L168 Benchmark]: RCFGBuilder took 552.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,412 INFO L168 Benchmark]: TraceAbstraction took 6684.69 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: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:46,414 INFO L168 Benchmark]: Witness Printer took 53.66 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. [2019-10-22 11:21:46,416 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -241.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 552.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6684.69 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: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. * Witness Printer took 53.66 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE * 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 - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 11:21:46,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,426 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,426 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - InvariantResult [Line: 5]: Loop Invariant [2019-10-22 11:21:46,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,430 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,431 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - InvariantResult [Line: 15]: Loop Invariant [2019-10-22 11:21:46,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.eq~DOUBLE(ulpdiff, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/85070591730234615865843651857942052864)) && ~fp.eq~DOUBLE(ulpdiff, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/85070591730234615865843651857942052864)) - InvariantResult [Line: 36]: Loop Invariant [2019-10-22 11:21:46,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,432 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 11:21:46,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:46,432 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: SAFE, OverallTime: 6.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 16 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 3 QuantifiedInterpolants, 376 SizeOfPredicates, 9 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...