./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ........................................................................................................................................................................................................................................................................................................ 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_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 3a46db52b19fb11eeacebca884b6de40c52cb082 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 11:58:49,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:58:49,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:58:49,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:58:49,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:58:49,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:58:49,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:58:49,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:58:49,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:58:49,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:58:49,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:58:49,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:58:49,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:58:49,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:58:49,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:58:49,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:58:49,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:58:49,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:58:49,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:58:49,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:58:49,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:58:49,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:58:49,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:58:49,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:58:49,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:58:49,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:58:49,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:58:49,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:58:49,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:58:49,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:58:49,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:58:49,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:58:49,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:58:49,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:58:49,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:58:49,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:58:49,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:58:49,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:58:49,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:58:49,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:58:49,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:58:49,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 11:58:49,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:58:49,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:58:49,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:58:49,821 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:58:49,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:58:49,821 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:58:49,821 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 11:58:49,821 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:58:49,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:58:49,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 11:58:49,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 11:58:49,822 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:58:49,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 11:58:49,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 11:58:49,822 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 11:58:49,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:58:49,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:58:49,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:58:49,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:58:49,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:58:49,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:58:49,826 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_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-12-09 11:58:50,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:58:50,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:58:50,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:58:50,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:58:50,020 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:58:50,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-09 11:58:50,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/d2033cb1e/7837af9fb2db4d24a227e680fe52f79e/FLAG87b17f0ad [2020-12-09 11:58:50,439 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:58:50,440 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-09 11:58:50,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/d2033cb1e/7837af9fb2db4d24a227e680fe52f79e/FLAG87b17f0ad [2020-12-09 11:58:50,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/d2033cb1e/7837af9fb2db4d24a227e680fe52f79e [2020-12-09 11:58:50,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:58:50,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:58:50,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:58:50,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:58:50,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:58:50,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390fec81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50, skipping insertion in model container [2020-12-09 11:58:50,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:58:50,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:58:50,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-09 11:58:50,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:58:50,622 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:58:50,645 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-09 11:58:50,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:58:50,659 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:58:50,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50 WrapperNode [2020-12-09 11:58:50,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:58:50,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:58:50,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:58:50,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:58:50,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:58:50,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:58:50,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:58:50,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:58:50,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... [2020-12-09 11:58:50,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:58:50,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:58:50,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:58:50,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:58:50,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 [2020-12-09 11:58:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 11:58:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:58:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 11:58:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 11:58:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 11:58:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:58:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:58:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 11:58:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 11:58:51,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:58:51,119 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 11:58:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:51 BoogieIcfgContainer [2020-12-09 11:58:51,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:58:51,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:58:51,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:58:51,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:58:51,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:58:50" (1/3) ... [2020-12-09 11:58:51,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4dba05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:58:51, skipping insertion in model container [2020-12-09 11:58:51,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:50" (2/3) ... [2020-12-09 11:58:51,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4dba05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:58:51, skipping insertion in model container [2020-12-09 11:58:51,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:51" (3/3) ... [2020-12-09 11:58:51,129 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-12-09 11:58:51,143 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:58:51,146 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:58:51,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:58:51,174 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:58:51,174 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:58:51,174 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:58:51,175 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:58:51,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:58:51,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:58:51,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:58:51,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:58:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-09 11:58:51,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 11:58:51,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:58:51,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:58:51,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:58:51,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:58:51,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1398311657, now seen corresponding path program 1 times [2020-12-09 11:58:51,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:58:51,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386078303] [2020-12-09 11:58:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:58:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:58:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:58:51,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386078303] [2020-12-09 11:58:51,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:58:51,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:58:51,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076460278] [2020-12-09 11:58:51,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 11:58:51,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:58:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 11:58:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:58:51,321 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-09 11:58:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:58:51,332 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-12-09 11:58:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 11:58:51,333 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 11:58:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:58:51,342 INFO L225 Difference]: With dead ends: 39 [2020-12-09 11:58:51,342 INFO L226 Difference]: Without dead ends: 18 [2020-12-09 11:58:51,345 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 [2020-12-09 11:58:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-09 11:58:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-09 11:58:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 11:58:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-12-09 11:58:51,372 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-12-09 11:58:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:58:51,372 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-12-09 11:58:51,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 11:58:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-12-09 11:58:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 11:58:51,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:58:51,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:58:51,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 11:58:51,373 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:58:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:58:51,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1668636454, now seen corresponding path program 1 times [2020-12-09 11:58:51,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:58:51,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671560844] [2020-12-09 11:58:51,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:58:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:58:51,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:58:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:58:51,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:58:51,438 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 11:58:51,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 11:58:51,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 11:58:51,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:58:51 BoogieIcfgContainer [2020-12-09 11:58:51,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:58:51,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:58:51,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:58:51,457 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:58:51,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:51" (3/4) ... [2020-12-09 11:58:51,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 11:58:51,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:58:51,461 INFO L168 Benchmark]: Toolchain (without parser) took 1001.01 ms. Allocated memory is still 109.1 MB. Free memory was 72.4 MB in the beginning and 67.2 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:51,461 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory was 88.8 MB in the beginning and 88.7 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:51,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.09 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 84.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:51,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 109.1 MB. Free memory was 84.4 MB in the beginning and 82.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:51,463 INFO L168 Benchmark]: Boogie Preprocessor took 20.26 ms. Allocated memory is still 109.1 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:51,463 INFO L168 Benchmark]: RCFGBuilder took 406.63 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 48.6 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:51,464 INFO L168 Benchmark]: TraceAbstraction took 333.23 ms. Allocated memory is still 109.1 MB. Free memory was 48.2 MB in the beginning and 67.8 MB in the end (delta: -19.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:51,464 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 109.1 MB. Free memory was 67.8 MB in the beginning and 67.2 MB in the end (delta: 600.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:51,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory was 88.8 MB in the beginning and 88.7 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.09 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 84.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 109.1 MB. Free memory was 84.4 MB in the beginning and 82.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.26 ms. Allocated memory is still 109.1 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 406.63 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 48.6 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 333.23 ms. Allocated memory is still 109.1 MB. Free memory was 48.2 MB in the beginning and 67.8 MB in the end (delta: -19.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.75 ms. Allocated memory is still 109.1 MB. Free memory was 67.8 MB in the beginning and 67.2 MB in the end (delta: 600.5 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: 98]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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 = 0.0f / 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] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; [L97] COND TRUE !isnan_float(res) [L98] 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: 0.2s, 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 0.2.0-7b2dab5 [2020-12-09 11:58:53,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:58:53,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:58:53,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:58:53,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:58:53,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:58:53,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:58:53,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:58:53,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:58:53,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:58:53,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:58:53,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:58:53,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:58:53,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:58:53,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:58:53,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:58:53,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:58:53,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:58:53,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:58:53,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:58:53,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:58:53,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:58:53,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:58:53,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:58:53,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:58:53,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:58:53,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:58:53,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:58:53,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:58:53,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:58:53,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:58:53,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:58:53,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:58:53,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:58:53,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:58:53,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:58:53,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:58:53,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:58:53,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:58:53,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:58:53,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:58:53,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 11:58:53,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:58:53,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:58:53,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:58:53,205 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:58:53,205 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:58:53,205 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:58:53,205 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:58:53,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:58:53,206 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:58:53,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:58:53,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:58:53,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 11:58:53,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:58:53,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:58:53,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:58:53,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:58:53,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:58:53,209 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_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-12-09 11:58:53,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:58:53,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:58:53,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:58:53,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:58:53,443 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:58:53,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-09 11:58:53,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/c08de091a/0914baa138954f3c8cfddf02e018ca6d/FLAG116670366 [2020-12-09 11:58:53,879 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:58:53,879 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-09 11:58:53,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/c08de091a/0914baa138954f3c8cfddf02e018ca6d/FLAG116670366 [2020-12-09 11:58:53,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/data/c08de091a/0914baa138954f3c8cfddf02e018ca6d [2020-12-09 11:58:53,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:58:53,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:58:53,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:58:53,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:58:53,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:58:53,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:58:53" (1/1) ... [2020-12-09 11:58:53,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6034afb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:53, skipping insertion in model container [2020-12-09 11:58:53,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:58:53" (1/1) ... [2020-12-09 11:58:53,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:58:53,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:58:54,055 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-09 11:58:54,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:58:54,070 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:58:54,107 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-09 11:58:54,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:58:54,124 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:58:54,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54 WrapperNode [2020-12-09 11:58:54,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:58:54,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:58:54,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:58:54,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:58:54,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:58:54,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:58:54,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:58:54,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:58:54,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... [2020-12-09 11:58:54,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:58:54,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:58:54,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:58:54,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:58:54,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 [2020-12-09 11:58:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 11:58:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:58:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 11:58:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 11:58:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:58:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:58:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 11:58:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 11:58:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 11:58:56,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:58:56,272 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 11:58:56,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:56 BoogieIcfgContainer [2020-12-09 11:58:56,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:58:56,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:58:56,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:58:56,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:58:56,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:58:53" (1/3) ... [2020-12-09 11:58:56,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6437a8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:58:56, skipping insertion in model container [2020-12-09 11:58:56,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:58:54" (2/3) ... [2020-12-09 11:58:56,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6437a8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:58:56, skipping insertion in model container [2020-12-09 11:58:56,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:56" (3/3) ... [2020-12-09 11:58:56,281 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-12-09 11:58:56,294 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:58:56,297 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:58:56,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:58:56,322 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:58:56,323 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:58:56,323 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:58:56,323 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:58:56,323 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:58:56,323 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:58:56,323 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:58:56,323 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:58:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-09 11:58:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 11:58:56,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:58:56,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:58:56,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:58:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:58:56,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-09 11:58:56,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:58:56,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113431137] [2020-12-09 11:58:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 [2020-12-09 11:58:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:58:56,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 11:58:56,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:58:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:58:56,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:58:56,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113431137] [2020-12-09 11:58:56,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:58:56,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:58:56,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559860992] [2020-12-09 11:58:56,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 11:58:56,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:58:56,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 11:58:56,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:58:56,532 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-09 11:58:56,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:58:56,544 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-09 11:58:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 11:58:56,545 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 11:58:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:58:56,550 INFO L225 Difference]: With dead ends: 64 [2020-12-09 11:58:56,551 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 11:58:56,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:58:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 11:58:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 11:58:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 11:58:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-09 11:58:56,575 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-09 11:58:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:58:56,575 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-09 11:58:56,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 11:58:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-09 11:58:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 11:58:56,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:58:56,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:58:56,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 11:58:56,777 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:58:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:58:56,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-09 11:58:56,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:58:56,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327448404] [2020-12-09 11:58:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 [2020-12-09 11:58:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:58:56,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 11:58:56,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:58:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:58:57,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:58:57,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327448404] [2020-12-09 11:58:57,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:58:57,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 11:58:57,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763095952] [2020-12-09 11:58:57,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 11:58:57,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:58:57,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 11:58:57,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 11:58:57,021 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2020-12-09 11:58:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:58:58,265 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-12-09 11:58:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 11:58:58,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-09 11:58:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:58:58,266 INFO L225 Difference]: With dead ends: 35 [2020-12-09 11:58:58,266 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 11:58:58,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 11:58:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 11:58:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 11:58:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 11:58:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-12-09 11:58:58,270 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-12-09 11:58:58,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:58:58,271 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-09 11:58:58,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 11:58:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-12-09 11:58:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 11:58:58,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:58:58,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:58:58,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 11:58:58,473 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:58:58,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:58:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-12-09 11:58:58,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:58:58,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839235673] [2020-12-09 11:58:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/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 [2020-12-09 11:58:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:58:58,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 11:58:58,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:58:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:58:58,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:58:58,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839235673] [2020-12-09 11:58:58,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:58:58,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 11:58:58,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977178588] [2020-12-09 11:58:58,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 11:58:58,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:58:58,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 11:58:58,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:58:58,685 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-12-09 11:58:58,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:58:58,799 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-09 11:58:58,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:58:58,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-09 11:58:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:58:58,799 INFO L225 Difference]: With dead ends: 30 [2020-12-09 11:58:58,800 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 11:58:58,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 11:58:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 11:58:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 11:58:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 11:58:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 11:58:58,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-09 11:58:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:58:58,801 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 11:58:58,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 11:58:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 11:58:58,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 11:58:59,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 11:58:59,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 11:58:59,132 INFO L265 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-09 11:58:59,132 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-12-09 11:58:59,132 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 11:58:59,133 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 11:58:59,134 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-09 11:58:59,134 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-09 11:58:59,135 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-09 11:58:59,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:58:59 BoogieIcfgContainer [2020-12-09 11:58:59,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:58:59,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:58:59,152 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:58:59,152 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:58:59,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:58:56" (3/4) ... [2020-12-09 11:58:59,155 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 11:58:59,164 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 11:58:59,165 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 11:58:59,165 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:58:59,165 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:58:59,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-09 11:58:59,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-09 11:58:59,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e13e5f6d-d93c-4c44-a055-0ea83f3f78fe/bin/utaipan/witness.graphml [2020-12-09 11:58:59,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:58:59,204 INFO L168 Benchmark]: Toolchain (without parser) took 5303.04 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.9 MB in the beginning and 41.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:59,204 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:59,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.84 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 38.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:59,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 37.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:59,205 INFO L168 Benchmark]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 35.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:58:59,206 INFO L168 Benchmark]: RCFGBuilder took 2074.46 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 49.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:59,206 INFO L168 Benchmark]: TraceAbstraction took 2876.33 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 44.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:59,206 INFO L168 Benchmark]: Witness Printer took 50.69 ms. Allocated memory is still 75.5 MB. Free memory was 44.2 MB in the beginning and 41.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:58:59,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 223.84 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 38.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 37.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 35.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2074.46 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 49.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2876.33 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 44.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 50.69 ms. Allocated memory is still 75.5 MB. Free memory was 44.2 MB in the beginning and 41.0 MB in the end (delta: 3.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-12-09 11:58:59,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-12-09 11:58:59,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-12-09 11:58:59,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 11:58:59,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 85 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 4 QuantifiedInterpolants, 2125 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...