./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.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_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI --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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI --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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:36,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:36,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:36,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:36,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:36,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:36,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:36,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:36,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:36,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:36,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:36,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:36,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:36,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:36,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:36,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:36,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:36,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:36,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:36,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:36,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:36,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:36,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:36,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:36,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:36,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:36,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:36,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:36,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:36,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:36,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:36,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:36,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:36,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:36,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:36,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:36,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:36,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:36,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:36,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:36,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:36,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:36,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:36,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:36,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:36,706 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:36,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:36,707 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:36,707 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:36,707 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:36,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:36,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:36,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:36,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:36,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:36,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:36,716 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:36,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:36,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:36,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:36,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:36,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:36,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:36,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:36,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:36,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:36,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:36,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:36,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:36,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:36,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:36,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:36,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:36,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:36,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:36,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:36,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:36,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:36,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:36,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:36,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:36,724 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_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2021-10-11 02:20:36,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:36,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:36,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:36,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:36,992 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:36,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-10-11 02:20:37,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/af1bd8438/dcaf37455d0b476fa0b2b441bff2fba7/FLAG2c7b73c14 [2021-10-11 02:20:37,516 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:37,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-10-11 02:20:37,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/af1bd8438/dcaf37455d0b476fa0b2b441bff2fba7/FLAG2c7b73c14 [2021-10-11 02:20:37,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/af1bd8438/dcaf37455d0b476fa0b2b441bff2fba7 [2021-10-11 02:20:37,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:37,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:37,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:37,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:37,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:37,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:37" (1/1) ... [2021-10-11 02:20:37,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137fd21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:37, skipping insertion in model container [2021-10-11 02:20:37,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:37" (1/1) ... [2021-10-11 02:20:37,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:37,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:38,155 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-10-11 02:20:38,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:38,165 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:38,198 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-10-11 02:20:38,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:38,212 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:38,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38 WrapperNode [2021-10-11 02:20:38,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:38,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:38,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:38,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:38,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:38,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:38,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:38,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:38,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... [2021-10-11 02:20:38,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:38,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:38,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:38,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:38,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:20:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:20:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:20:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:20:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-11 02:20:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:20:38,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:38,819 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-11 02:20:38,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:38 BoogieIcfgContainer [2021-10-11 02:20:38,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:38,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:38,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:38,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:38,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:37" (1/3) ... [2021-10-11 02:20:38,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b4b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:38, skipping insertion in model container [2021-10-11 02:20:38,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:38" (2/3) ... [2021-10-11 02:20:38,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b4b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:38, skipping insertion in model container [2021-10-11 02:20:38,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:38" (3/3) ... [2021-10-11 02:20:38,830 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-10-11 02:20:38,844 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:38,862 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:38,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:38,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:38,901 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:38,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:38,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:38,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:38,902 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:38,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:38,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-10-11 02:20:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:20:38,919 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:38,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:38,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:38,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1340340375, now seen corresponding path program 1 times [2021-10-11 02:20:38,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:38,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809130635] [2021-10-11 02:20:38,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:39,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809130635] [2021-10-11 02:20:39,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:39,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:39,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654904959] [2021-10-11 02:20:39,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:20:39,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:39,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:20:39,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:39,090 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2021-10-11 02:20:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:39,108 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-10-11 02:20:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:20:39,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:20:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:39,118 INFO L225 Difference]: With dead ends: 67 [2021-10-11 02:20:39,118 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 02:20:39,121 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 [2021-10-11 02:20:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 02:20:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 02:20:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 02:20:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-10-11 02:20:39,152 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-10-11 02:20:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:39,153 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-10-11 02:20:39,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:20:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-10-11 02:20:39,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:20:39,153 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:39,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:39,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:20:39,154 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash 932107514, now seen corresponding path program 1 times [2021-10-11 02:20:39,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:39,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105091169] [2021-10-11 02:20:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:20:39,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:20:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:20:39,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:20:39,397 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:20:39,397 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:20:39,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:20:39,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:39 BoogieIcfgContainer [2021-10-11 02:20:39,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:39,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:39,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:39,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:39,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:38" (3/4) ... [2021-10-11 02:20:39,430 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:20:39,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:39,433 INFO L168 Benchmark]: Toolchain (without parser) took 1512.52 ms. Allocated memory was 130.0 MB in the beginning and 176.2 MB in the end (delta: 46.1 MB). Free memory was 104.9 MB in the beginning and 145.4 MB in the end (delta: -40.5 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:39,433 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 130.0 MB. Free memory is still 87.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:39,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.03 ms. Allocated memory is still 130.0 MB. Free memory was 104.8 MB in the beginning and 103.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:39,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 101.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:39,435 INFO L168 Benchmark]: Boogie Preprocessor took 37.36 ms. Allocated memory is still 130.0 MB. Free memory was 101.5 MB in the beginning and 99.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:39,436 INFO L168 Benchmark]: RCFGBuilder took 528.50 ms. Allocated memory is still 130.0 MB. Free memory was 99.4 MB in the beginning and 68.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:39,437 INFO L168 Benchmark]: TraceAbstraction took 602.33 ms. Allocated memory was 130.0 MB in the beginning and 176.2 MB in the end (delta: 46.1 MB). Free memory was 68.0 MB in the beginning and 146.4 MB in the end (delta: -78.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:39,437 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 176.2 MB. Free memory was 146.4 MB in the beginning and 145.4 MB in the end (delta: 970.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:39,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 130.0 MB. Free memory is still 87.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.03 ms. Allocated memory is still 130.0 MB. Free memory was 104.8 MB in the beginning and 103.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 101.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.36 ms. Allocated memory is still 130.0 MB. Free memory was 101.5 MB in the beginning and 99.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 528.50 ms. Allocated memory is still 130.0 MB. Free memory was 99.4 MB in the beginning and 68.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 602.33 ms. Allocated memory was 130.0 MB in the beginning and 176.2 MB in the end (delta: 46.1 MB). Free memory was 68.0 MB in the beginning and 146.4 MB in the end (delta: -78.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.12 ms. Allocated memory is still 176.2 MB. Free memory was 146.4 MB in the beginning and 145.4 MB in the end (delta: 970.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 125]: 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 [2021-10-11 02:20:41,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:41,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:41,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:41,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:41,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:41,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:41,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:41,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:41,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:41,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:41,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:41,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:41,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:41,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:41,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:41,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:41,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:41,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:41,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:41,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:41,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:41,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:41,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:41,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:41,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:41,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:41,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:41,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:41,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:41,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:41,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:41,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:41,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:41,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:41,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:41,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:41,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:41,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:41,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:41,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:41,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:20:41,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:41,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:41,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:41,970 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:41,971 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:41,971 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:41,971 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:41,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:41,972 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:41,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:41,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:41,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:41,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:41,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:41,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:41,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:41,976 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:41,976 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:20:41,976 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:20:41,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:41,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:41,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:41,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:41,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:41,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:20:41,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:41,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:41,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:41,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:41,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:41,979 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:20:41,979 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:20:41,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:41,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:41,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:41,980 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_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2021-10-11 02:20:42,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:42,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:42,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:42,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:42,403 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:42,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-10-11 02:20:42,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/a678e7109/74cd920ae1f6469680da928a80ea4c77/FLAGf08f971a8 [2021-10-11 02:20:42,950 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:42,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-10-11 02:20:42,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/a678e7109/74cd920ae1f6469680da928a80ea4c77/FLAGf08f971a8 [2021-10-11 02:20:43,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/data/a678e7109/74cd920ae1f6469680da928a80ea4c77 [2021-10-11 02:20:43,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:43,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:43,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:43,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:43,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:43,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2873bd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43, skipping insertion in model container [2021-10-11 02:20:43,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:43,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:43,538 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-10-11 02:20:43,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:43,572 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:43,609 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-10-11 02:20:43,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:43,628 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:43,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43 WrapperNode [2021-10-11 02:20:43,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:43,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:43,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:43,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:43,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:43,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:43,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:43,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:43,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... [2021-10-11 02:20:43,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:43,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:43,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:43,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:43,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-11 02:20:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:20:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:20:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:20:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:20:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:20:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:20:46,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:46,811 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-11 02:20:46,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:46 BoogieIcfgContainer [2021-10-11 02:20:46,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:46,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:46,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:46,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:46,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:43" (1/3) ... [2021-10-11 02:20:46,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2eca33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:46, skipping insertion in model container [2021-10-11 02:20:46,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:43" (2/3) ... [2021-10-11 02:20:46,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2eca33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:46, skipping insertion in model container [2021-10-11 02:20:46,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:46" (3/3) ... [2021-10-11 02:20:46,825 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-10-11 02:20:46,839 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:46,842 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:46,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:46,873 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:46,874 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:46,874 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:46,874 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:46,874 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:46,874 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:46,874 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:46,874 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2021-10-11 02:20:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:20:46,891 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:46,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:46,891 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:46,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:46,897 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-10-11 02:20:46,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:20:46,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137057056] [2021-10-11 02:20:46,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:47,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:20:47,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:47,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:20:47,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137057056] [2021-10-11 02:20:47,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:47,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:47,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399490495] [2021-10-11 02:20:47,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:20:47,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:20:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:20:47,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:47,360 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2021-10-11 02:20:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:47,386 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2021-10-11 02:20:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:20:47,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:20:47,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:47,403 INFO L225 Difference]: With dead ends: 82 [2021-10-11 02:20:47,403 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:20:47,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:20:47,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 02:20:47,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 02:20:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-10-11 02:20:47,446 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2021-10-11 02:20:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:47,446 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-10-11 02:20:47,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:20:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-10-11 02:20:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:20:47,449 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:47,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:47,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:20:47,672 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2021-10-11 02:20:47,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:20:47,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260799528] [2021-10-11 02:20:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:48,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:20:48,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:49,268 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 02:20:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:50,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:20:50,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260799528] [2021-10-11 02:20:50,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:50,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:20:50,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025932252] [2021-10-11 02:20:50,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:20:50,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:20:50,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:20:50,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:20:50,491 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 7 states. [2021-10-11 02:20:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:58,276 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2021-10-11 02:20:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:20:58,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 02:20:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:58,278 INFO L225 Difference]: With dead ends: 49 [2021-10-11 02:20:58,279 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 02:20:58,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:20:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 02:20:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2021-10-11 02:20:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 02:20:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-10-11 02:20:58,288 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2021-10-11 02:20:58,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:58,289 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-11 02:20:58,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:20:58,289 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-10-11 02:20:58,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:20:58,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:58,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:58,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:20:58,510 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:58,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:58,510 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2021-10-11 02:20:58,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:20:58,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809791961] [2021-10-11 02:20:58,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:58,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:20:58,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:58,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:20:58,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809791961] [2021-10-11 02:20:58,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:58,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:20:58,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115398186] [2021-10-11 02:20:58,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:20:58,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:20:58,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:20:58,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:58,788 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 5 states. [2021-10-11 02:20:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:58,966 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-10-11 02:20:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:20:58,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:20:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:58,966 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:20:58,966 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:20:58,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:20:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:20:58,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:20:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:20:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:20:58,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-11 02:20:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:58,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:20:58,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:20:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:20:58,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:20:59,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:20:59,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:20:59,746 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 02:20:59,859 INFO L262 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-10-11 02:20:59,859 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-10-11 02:20:59,859 INFO L262 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,859 INFO L262 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L258 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L258 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,860 INFO L262 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,861 INFO L262 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-10-11 02:20:59,861 INFO L265 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2021-10-11 02:20:59,861 INFO L262 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-10-11 02:20:59,861 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-10-11 02:20:59,861 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-11 02:20:59,861 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-10-11 02:20:59,861 INFO L262 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L258 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2021-10-11 02:20:59,862 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L262 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L258 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-10-11 02:20:59,862 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-10-11 02:20:59,862 INFO L258 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-11 02:20:59,863 INFO L258 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-10-11 02:20:59,863 INFO L262 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-10-11 02:20:59,864 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-10-11 02:20:59,864 INFO L258 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-10-11 02:20:59,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:20:59,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:20:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,893 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:20:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,893 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:20:59,895 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:20:59,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:20:59,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:20:59,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:20:59,897 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:20:59,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:59 BoogieIcfgContainer [2021-10-11 02:20:59,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:59,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:59,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:59,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:59,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:46" (3/4) ... [2021-10-11 02:20:59,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:20:59,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:20:59,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:20:59,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:59,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:20:59,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-11 02:20:59,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f442f990-6d22-41ae-bbe9-05a90c6b07c0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:20:59,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:59,985 INFO L168 Benchmark]: Toolchain (without parser) took 16648.78 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 37.5 MB in the beginning and 34.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,986 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 40.0 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:59,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.70 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 40.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.77 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 38.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,987 INFO L168 Benchmark]: Boogie Preprocessor took 68.97 ms. Allocated memory is still 58.7 MB. Free memory was 38.2 MB in the beginning and 36.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,988 INFO L168 Benchmark]: RCFGBuilder took 3066.83 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.2 MB in the beginning and 45.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,988 INFO L168 Benchmark]: TraceAbstraction took 13082.58 ms. Allocated memory is still 77.6 MB. Free memory was 44.6 MB in the beginning and 37.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,989 INFO L168 Benchmark]: Witness Printer took 82.39 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 34.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:59,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 40.0 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.70 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 40.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.77 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 38.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.97 ms. Allocated memory is still 58.7 MB. Free memory was 38.2 MB in the beginning and 36.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3066.83 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.2 MB in the beginning and 45.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13082.58 ms. Allocated memory is still 77.6 MB. Free memory was 44.6 MB in the beginning and 37.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 82.39 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 34.4 MB in the end (delta: 2.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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: 19]: Loop Invariant [2021-10-11 02:21:00,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:21:00,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,018 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:21:00,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,019 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2021-10-11 02:21:00,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,020 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_float_~y : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y))) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-10-11 02:21:00,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:21:00,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:21:00,023 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:21:00,024 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:21:00,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:21:00,025 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 101 SDslu, 150 SDs, 0 SdLazy, 39 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 49 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 7 QuantifiedInterpolants, 2572 SizeOfPredicates, 17 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 21 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...