./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:50:01,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:50:01,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:50:01,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:50:01,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:50:01,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:50:01,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:50:01,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:50:01,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:50:01,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:50:01,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:50:01,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:50:01,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:50:01,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:50:01,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:50:01,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:50:01,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:50:01,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:50:01,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:50:01,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:50:01,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:50:01,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:50:01,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:50:01,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:50:01,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:50:01,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:50:01,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:50:01,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:50:01,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:50:01,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:50:01,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:50:01,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:50:01,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:50:01,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:50:01,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:50:01,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:50:01,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:50:01,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:50:01,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:50:01,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:50:01,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:50:01,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:50:01,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:50:01,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:50:01,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:50:01,898 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:50:01,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:50:01,898 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:50:01,899 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:50:01,899 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:50:01,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:50:01,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:50:01,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:50:01,900 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:50:01,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:50:01,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:50:01,901 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:50:01,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:50:01,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:50:01,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:50:01,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:50:01,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:50:01,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:50:01,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:50:01,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:50:01,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:50:01,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:50:01,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:50:01,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:50:01,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:50:01,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:50:01,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:50:01,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:50:01,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:50:01,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:50:01,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:50:01,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:50:01,908 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:50:01,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:50:01,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:50:01,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:50:01,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:50:01,909 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-11-30 02:50:02,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:50:02,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:50:02,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:50:02,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:50:02,224 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:50:02,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-11-30 02:50:02,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/3b87e4c8a/dbfa59184fb444fba7a254b370995834/FLAG7d259ef76 [2020-11-30 02:50:02,868 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:50:02,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-11-30 02:50:02,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/3b87e4c8a/dbfa59184fb444fba7a254b370995834/FLAG7d259ef76 [2020-11-30 02:50:03,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/3b87e4c8a/dbfa59184fb444fba7a254b370995834 [2020-11-30 02:50:03,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:50:03,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:50:03,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:50:03,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:50:03,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:50:03,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6523de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03, skipping insertion in model container [2020-11-30 02:50:03,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:50:03,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:50:03,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:50:03,581 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:50:03,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:50:03,669 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:50:03,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03 WrapperNode [2020-11-30 02:50:03,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:50:03,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:50:03,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:50:03,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:50:03,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:50:03,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:50:03,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:50:03,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:50:03,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... [2020-11-30 02:50:03,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:50:03,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:50:03,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:50:03,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:50:03,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/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 [2020-11-30 02:50:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:50:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:50:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:50:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:50:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:50:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:50:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:50:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:50:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:50:04,736 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:50:04,737 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 02:50:04,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:04 BoogieIcfgContainer [2020-11-30 02:50:04,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:50:04,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:50:04,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:50:04,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:50:04,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:50:03" (1/3) ... [2020-11-30 02:50:04,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30946e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:50:04, skipping insertion in model container [2020-11-30 02:50:04,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:03" (2/3) ... [2020-11-30 02:50:04,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30946e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:50:04, skipping insertion in model container [2020-11-30 02:50:04,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:04" (3/3) ... [2020-11-30 02:50:04,757 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-11-30 02:50:04,777 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:50:04,781 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:50:04,793 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:50:04,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:50:04,821 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:50:04,821 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:50:04,821 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:50:04,821 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:50:04,822 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:50:04,822 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:50:04,822 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:50:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 02:50:04,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:50:04,840 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:50:04,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:50:04,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:50:04,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:50:04,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1121646355, now seen corresponding path program 1 times [2020-11-30 02:50:04,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:50:04,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029796837] [2020-11-30 02:50:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:50:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:50:05,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:05,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029796837] [2020-11-30 02:50:05,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:50:05,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:50:05,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158636534] [2020-11-30 02:50:05,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:50:05,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:50:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:50:05,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:50:05,045 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 02:50:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:50:05,063 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 02:50:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:50:05,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 02:50:05,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:50:05,076 INFO L225 Difference]: With dead ends: 39 [2020-11-30 02:50:05,076 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 02:50:05,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:50:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 02:50:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 02:50:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 02:50:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-11-30 02:50:05,119 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-11-30 02:50:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:50:05,120 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-30 02:50:05,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:50:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-30 02:50:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:50:05,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:50:05,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:50:05,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:50:05,122 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:50:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:50:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1816986138, now seen corresponding path program 1 times [2020-11-30 02:50:05,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:50:05,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283514826] [2020-11-30 02:50:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:50:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:50:05,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:50:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:50:05,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:50:05,333 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:50:05,333 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:50:05,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:50:05,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:50:05 BoogieIcfgContainer [2020-11-30 02:50:05,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:50:05,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:50:05,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:50:05,378 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:50:05,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:04" (3/4) ... [2020-11-30 02:50:05,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:50:05,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:50:05,385 INFO L168 Benchmark]: Toolchain (without parser) took 2176.63 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 59.8 MB in the beginning and 63.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,386 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:50:05,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.59 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 67.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 65.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:50:05,389 INFO L168 Benchmark]: Boogie Preprocessor took 71.44 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 64.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,389 INFO L168 Benchmark]: RCFGBuilder took 916.58 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 64.1 MB in the beginning and 86.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,390 INFO L168 Benchmark]: TraceAbstraction took 632.11 ms. Allocated memory is still 109.1 MB. Free memory was 85.6 MB in the beginning and 63.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,391 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 109.1 MB. Free memory was 63.7 MB in the beginning and 63.1 MB in the end (delta: 547.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:05,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.59 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 67.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 65.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.44 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 64.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 916.58 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 64.1 MB in the beginning and 86.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 632.11 ms. Allocated memory is still 109.1 MB. Free memory was 85.6 MB in the beginning and 63.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.12 ms. Allocated memory is still 109.1 MB. Free memory was 63.7 MB in the beginning and 63.1 MB in the end (delta: 547.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = -1.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] float res = __ieee754_sqrtf(x); [L15] return x != x; [L98] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0740.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-30 02:50:08,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:50:08,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:50:08,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:50:08,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:50:08,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:50:08,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:50:08,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:50:08,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:50:08,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:50:08,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:50:08,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:50:08,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:50:08,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:50:08,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:50:08,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:50:08,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:50:08,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:50:08,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:50:08,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:50:08,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:50:08,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:50:08,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:50:08,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:50:08,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:50:08,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:50:08,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:50:08,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:50:08,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:50:08,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:50:08,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:50:08,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:50:08,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:50:08,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:50:08,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:50:08,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:50:08,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:50:08,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:50:08,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:50:08,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:50:08,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:50:08,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:50:08,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:50:08,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:50:08,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:50:08,718 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:50:08,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:50:08,719 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:50:08,719 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:50:08,719 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:50:08,719 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:50:08,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:50:08,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:50:08,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:50:08,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:50:08,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:50:08,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:50:08,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:50:08,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:50:08,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:50:08,726 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:50:08,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:50:08,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:50:08,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:50:08,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:50:08,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:50:08,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:50:08,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:50:08,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:50:08,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:50:08,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:50:08,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:50:08,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:50:08,730 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:50:08,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:50:08,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:50:08,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:50:08,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:50:08,752 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-11-30 02:50:09,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:50:09,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:50:09,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:50:09,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:50:09,222 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:50:09,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-11-30 02:50:09,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/01c4bbed5/b5d00d615c9743cabdc98e2a120342e0/FLAGd499749ee [2020-11-30 02:50:09,871 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:50:09,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-11-30 02:50:09,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/01c4bbed5/b5d00d615c9743cabdc98e2a120342e0/FLAGd499749ee [2020-11-30 02:50:10,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/data/01c4bbed5/b5d00d615c9743cabdc98e2a120342e0 [2020-11-30 02:50:10,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:50:10,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:50:10,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:50:10,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:50:10,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:50:10,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300c15d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10, skipping insertion in model container [2020-11-30 02:50:10,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:50:10,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:50:10,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:50:10,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:50:10,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:50:10,630 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:50:10,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10 WrapperNode [2020-11-30 02:50:10,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:50:10,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:50:10,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:50:10,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:50:10,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:50:10,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:50:10,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:50:10,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:50:10,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... [2020-11-30 02:50:10,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:50:10,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:50:10,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:50:10,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:50:10,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/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 [2020-11-30 02:50:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:50:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:50:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:50:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:50:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:50:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:50:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:50:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:50:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:50:12,419 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:50:12,420 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 02:50:12,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:12 BoogieIcfgContainer [2020-11-30 02:50:12,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:50:12,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:50:12,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:50:12,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:50:12,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:50:10" (1/3) ... [2020-11-30 02:50:12,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527a1da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:50:12, skipping insertion in model container [2020-11-30 02:50:12,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:50:10" (2/3) ... [2020-11-30 02:50:12,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527a1da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:50:12, skipping insertion in model container [2020-11-30 02:50:12,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:12" (3/3) ... [2020-11-30 02:50:12,443 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-11-30 02:50:12,456 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:50:12,462 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:50:12,476 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:50:12,505 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:50:12,505 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:50:12,505 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:50:12,505 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:50:12,505 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:50:12,505 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:50:12,506 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:50:12,506 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:50:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 02:50:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:50:12,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:50:12,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:50:12,528 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:50:12,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:50:12,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-11-30 02:50:12,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:50:12,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481999775] [2020-11-30 02:50:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/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 [2020-11-30 02:50:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:50:12,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:50:12,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:50:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:12,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:50:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:12,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481999775] [2020-11-30 02:50:12,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:50:12,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:50:12,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818313229] [2020-11-30 02:50:12,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:50:12,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:50:12,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:50:12,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:50:12,878 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 02:50:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:50:12,911 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-30 02:50:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:50:12,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 02:50:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:50:12,939 INFO L225 Difference]: With dead ends: 65 [2020-11-30 02:50:12,939 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 02:50:12,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:50:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 02:50:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 02:50:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 02:50:13,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-30 02:50:13,003 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-30 02:50:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:50:13,004 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-30 02:50:13,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:50:13,004 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-30 02:50:13,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:50:13,005 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:50:13,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:50:13,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:50:13,224 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:50:13,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:50:13,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-11-30 02:50:13,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:50:13,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106827567] [2020-11-30 02:50:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/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 [2020-11-30 02:50:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:50:13,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 02:50:13,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:50:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:13,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:50:18,467 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-30 02:50:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:18,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106827567] [2020-11-30 02:50:18,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:50:18,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 02:50:18,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614526010] [2020-11-30 02:50:18,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:50:18,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:50:18,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:50:18,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:50:18,492 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-30 02:50:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:50:19,721 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-11-30 02:50:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:50:19,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-30 02:50:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:50:19,723 INFO L225 Difference]: With dead ends: 35 [2020-11-30 02:50:19,723 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 02:50:19,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:50:19,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 02:50:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 02:50:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 02:50:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-30 02:50:19,732 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2020-11-30 02:50:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:50:19,732 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-30 02:50:19,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:50:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-11-30 02:50:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:50:19,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:50:19,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:50:19,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:50:19,953 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:50:19,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:50:19,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2020-11-30 02:50:19,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:50:19,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028341450] [2020-11-30 02:50:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/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 [2020-11-30 02:50:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:50:20,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:50:20,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:50:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:20,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:50:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:50:20,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028341450] [2020-11-30 02:50:20,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:50:20,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:50:20,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338498355] [2020-11-30 02:50:20,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:50:20,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:50:20,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:50:20,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:50:20,375 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 8 states. [2020-11-30 02:50:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:50:20,540 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-11-30 02:50:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:50:20,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 02:50:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:50:20,541 INFO L225 Difference]: With dead ends: 30 [2020-11-30 02:50:20,541 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:50:20,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:50:20,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:50:20,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:50:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:50:20,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:50:20,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-30 02:50:20,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:50:20,543 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:50:20,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:50:20,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:50:20,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:50:20,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:50:20,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:50:20,900 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-11-30 02:50:20,901 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-11-30 02:50:20,901 INFO L277 CegarLoopResult]: At program point L103(lines 86 104) the Hoare annotation is: true [2020-11-30 02:50:20,902 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-11-30 02:50:20,902 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-11-30 02:50:20,902 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-11-30 02:50:20,902 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-30 02:50:20,902 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-30 02:50:20,902 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-30 02:50:20,904 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-11-30 02:50:20,906 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-11-30 02:50:20,906 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-11-30 02:50:20,907 INFO L274 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-11-30 02:50:20,907 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:50:20,907 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-11-30 02:50:20,907 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:50:20,907 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-11-30 02:50:20,908 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-11-30 02:50:20,908 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) [2020-11-30 02:50:20,908 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-11-30 02:50:20,908 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-11-30 02:50:20,909 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-11-30 02:50:20,909 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-11-30 02:50:20,909 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-11-30 02:50:20,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:50:20,910 INFO L270 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-11-30 02:50:20,910 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-30 02:50:20,910 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-11-30 02:50:20,922 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,949 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,950 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:20,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:20,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:50:20 BoogieIcfgContainer [2020-11-30 02:50:20,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:50:20,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:50:20,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:50:20,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:50:20,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:50:12" (3/4) ... [2020-11-30 02:50:20,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:50:21,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 02:50:21,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 02:50:21,001 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:50:21,001 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:50:21,036 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-11-30 02:50:21,037 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-11-30 02:50:21,095 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dafddc23-34f3-43bd-a45b-253ca25c8dde/bin/utaipan/witness.graphml [2020-11-30 02:50:21,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:50:21,102 INFO L168 Benchmark]: Toolchain (without parser) took 10865.28 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 57.6 MB in the beginning and 33.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,103 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 73.4 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:50:21,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.27 ms. Allocated memory is still 73.4 MB. Free memory was 57.4 MB in the beginning and 56.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.57 ms. Allocated memory is still 73.4 MB. Free memory was 56.0 MB in the beginning and 54.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,105 INFO L168 Benchmark]: Boogie Preprocessor took 88.07 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,105 INFO L168 Benchmark]: RCFGBuilder took 1577.67 ms. Allocated memory is still 73.4 MB. Free memory was 52.4 MB in the beginning and 32.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,106 INFO L168 Benchmark]: TraceAbstraction took 8539.33 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 32.2 MB in the beginning and 37.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,106 INFO L168 Benchmark]: Witness Printer took 136.23 ms. Allocated memory is still 88.1 MB. Free memory was 37.3 MB in the beginning and 33.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:50:21,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 73.4 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.27 ms. Allocated memory is still 73.4 MB. Free memory was 57.4 MB in the beginning and 56.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.57 ms. Allocated memory is still 73.4 MB. Free memory was 56.0 MB in the beginning and 54.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.07 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1577.67 ms. Allocated memory is still 73.4 MB. Free memory was 52.4 MB in the beginning and 32.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8539.33 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 32.2 MB in the beginning and 37.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 136.23 ms. Allocated memory is still 88.1 MB. Free memory was 37.3 MB in the beginning and 33.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 - 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 - 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 - 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 unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 02:50:21,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-11-30 02:50:21,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2020-11-30 02:50:21,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:50:21,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:50:21,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 49 SDslu, 130 SDs, 0 SdLazy, 53 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 100 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 3550 SizeOfPredicates, 17 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 20 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...