./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 fe7e30ef8cec89818712ef1a5b90083d064da205 ............................................................................................................................................................................................................................................................................................................. 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 fe7e30ef8cec89818712ef1a5b90083d064da205 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:32:50,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:50,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:51,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:51,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:51,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:51,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:51,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:51,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:51,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:51,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:51,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:51,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:51,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:51,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:51,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:51,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:51,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:51,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:51,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:51,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:51,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:51,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:51,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:51,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:51,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:51,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:51,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:51,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:51,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:51,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:51,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:51,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:51,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:51,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:51,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:51,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:51,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:51,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:51,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:51,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:51,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:51,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:51,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:51,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:51,167 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:51,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:51,167 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:51,167 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:51,174 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:51,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:51,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:51,176 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:51,176 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:51,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:51,177 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:51,177 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:51,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:51,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:51,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:51,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:51,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:51,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:51,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:51,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:51,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:51,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:51,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:51,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:51,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:51,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:51,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:51,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:51,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:51,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:51,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:51,184 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:51,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:51,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:51,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:51,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:51,185 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7e30ef8cec89818712ef1a5b90083d064da205 [2021-10-11 02:32:51,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:51,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:51,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:51,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:51,523 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:51,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-11 02:32:51,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/c4b51c77f/6d2101bab09440ed82a0feef919ad0b9/FLAG8e7ac8a07 [2021-10-11 02:32:52,132 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:52,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-11 02:32:52,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/c4b51c77f/6d2101bab09440ed82a0feef919ad0b9/FLAG8e7ac8a07 [2021-10-11 02:32:52,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/c4b51c77f/6d2101bab09440ed82a0feef919ad0b9 [2021-10-11 02:32:52,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:52,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:52,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:52,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:52,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:52,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e544a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52, skipping insertion in model container [2021-10-11 02:32:52,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:52,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:52,696 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-11 02:32:52,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:52,717 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:52,796 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-11 02:32:52,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:52,814 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:52,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52 WrapperNode [2021-10-11 02:32:52,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:52,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:52,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:52,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:52,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:52,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:52,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:52,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:52,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:52,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:52,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:52,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:52,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 02:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:32:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:32:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:32:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:32:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:53,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:53,630 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:32:53,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53 BoogieIcfgContainer [2021-10-11 02:32:53,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:53,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:53,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:53,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:53,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:52" (1/3) ... [2021-10-11 02:32:53,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b5f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:53, skipping insertion in model container [2021-10-11 02:32:53,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52" (2/3) ... [2021-10-11 02:32:53,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b5f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:53, skipping insertion in model container [2021-10-11 02:32:53,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53" (3/3) ... [2021-10-11 02:32:53,655 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2021-10-11 02:32:53,671 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:53,675 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:53,690 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:53,737 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:53,737 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:53,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:53,738 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:53,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:53,738 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:53,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:53,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-10-11 02:32:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:53,783 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,784 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1549312559, now seen corresponding path program 1 times [2021-10-11 02:32:53,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:53,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964329287] [2021-10-11 02:32:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:54,008 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 02:32:54,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964329287] [2021-10-11 02:32:54,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:54,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:54,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341786941] [2021-10-11 02:32:54,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:54,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:54,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:54,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:54,033 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2021-10-11 02:32:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:54,051 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2021-10-11 02:32:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:54,053 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:32:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:54,072 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:32:54,073 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:32:54,076 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 02:32:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:32:54,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:32:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:32:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-11 02:32:54,114 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2021-10-11 02:32:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:54,115 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-11 02:32:54,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-11 02:32:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:54,116 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:54,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:54,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:54,117 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1444622012, now seen corresponding path program 1 times [2021-10-11 02:32:54,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:54,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776432340] [2021-10-11 02:32:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:54,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:54,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:54,295 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:54,295 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:54,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:54,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:54 BoogieIcfgContainer [2021-10-11 02:32:54,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:54,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:54,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:54,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:54,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:53" (3/4) ... [2021-10-11 02:32:54,355 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:32:54,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:54,357 INFO L168 Benchmark]: Toolchain (without parser) took 1881.31 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 58.5 MB in the beginning and 85.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,358 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:54,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.04 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 58.4 MB in the beginning and 105.4 MB in the end (delta: -47.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 127.9 MB. Free memory was 105.1 MB in the beginning and 103.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:54,361 INFO L168 Benchmark]: Boogie Preprocessor took 33.77 ms. Allocated memory is still 127.9 MB. Free memory was 103.3 MB in the beginning and 101.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,362 INFO L168 Benchmark]: RCFGBuilder took 734.46 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 69.9 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,363 INFO L168 Benchmark]: TraceAbstraction took 715.18 ms. Allocated memory is still 127.9 MB. Free memory was 69.4 MB in the beginning and 85.5 MB in the end (delta: -16.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:54,365 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 127.9 MB. Free memory was 85.5 MB in the beginning and 85.0 MB in the end (delta: 528.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:54,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.04 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 58.4 MB in the beginning and 105.4 MB in the end (delta: -47.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 127.9 MB. Free memory was 105.1 MB in the beginning and 103.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.77 ms. Allocated memory is still 127.9 MB. Free memory was 103.3 MB in the beginning and 101.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 734.46 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 69.9 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 715.18 ms. Allocated memory is still 127.9 MB. Free memory was 69.4 MB in the beginning and 85.5 MB in the end (delta: -16.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.89 ms. Allocated memory is still 127.9 MB. Free memory was 85.5 MB in the beginning and 85.0 MB in the end (delta: 528.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 127]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 45. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L122] float x = -1.0f / 0.0f; [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] float res = __ieee754_logf(x); [L113] return x != x; [L126] COND TRUE !isnan_float(res) [L127] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:57,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:57,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:57,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:57,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:57,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:57,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:57,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:57,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:57,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:57,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:57,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:57,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:57,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:57,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:57,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:57,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:57,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:57,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:57,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:57,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:57,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:57,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:57,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:57,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:57,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:57,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:57,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:57,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:57,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:57,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:57,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:57,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:57,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:57,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:57,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:57,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:57,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:57,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:57,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:57,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:57,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:57,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:57,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:57,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:57,227 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:57,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:57,228 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:57,228 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:57,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:57,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:57,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:57,232 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:57,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:57,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:57,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:57,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:57,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:57,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:57,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:57,234 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:57,234 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:57,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:57,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:57,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:57,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:57,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:57,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:57,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:57,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:57,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:57,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:57,236 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:57,237 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:57,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:57,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:57,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:57,238 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7e30ef8cec89818712ef1a5b90083d064da205 [2021-10-11 02:32:57,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:57,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:57,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:57,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:57,669 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:57,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-11 02:32:57,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/a8b85c3bf/0e208fb729ce4e67b69e830d026372d4/FLAG0c26a2de0 [2021-10-11 02:32:58,281 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:58,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2021-10-11 02:32:58,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/a8b85c3bf/0e208fb729ce4e67b69e830d026372d4/FLAG0c26a2de0 [2021-10-11 02:32:58,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/data/a8b85c3bf/0e208fb729ce4e67b69e830d026372d4 [2021-10-11 02:32:58,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:58,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:58,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:58,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:58,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:58,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac7989c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58, skipping insertion in model container [2021-10-11 02:32:58,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:58,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:58,964 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-11 02:32:58,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:59,001 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:59,084 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_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2021-10-11 02:32:59,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:59,119 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:59,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59 WrapperNode [2021-10-11 02:32:59,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:59,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:59,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:59,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:59,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:59,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:59,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:59,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:59,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... [2021-10-11 02:32:59,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:59,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:59,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:59,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:59,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 02:32:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:32:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:32:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:32:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:32:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:33:21,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:21,483 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:33:21,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:21 BoogieIcfgContainer [2021-10-11 02:33:21,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:21,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:21,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:21,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:21,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:58" (1/3) ... [2021-10-11 02:33:21,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eef0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:21, skipping insertion in model container [2021-10-11 02:33:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:59" (2/3) ... [2021-10-11 02:33:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eef0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:21, skipping insertion in model container [2021-10-11 02:33:21,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:21" (3/3) ... [2021-10-11 02:33:21,496 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2021-10-11 02:33:21,513 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:21,518 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:33:21,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:33:21,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:21,562 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:21,562 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:21,562 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:21,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:21,562 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:21,563 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:21,563 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-10-11 02:33:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:33:21,585 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:21,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:21,587 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:21,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2021-10-11 02:33:21,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:21,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514886435] [2021-10-11 02:33:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 02:33:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:22,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:33:22,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:22,532 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 02:33:22,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:22,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514886435] [2021-10-11 02:33:22,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:22,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:22,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183662454] [2021-10-11 02:33:22,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:33:22,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:22,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:33:22,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:22,565 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2021-10-11 02:33:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:22,600 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2021-10-11 02:33:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:33:22,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 02:33:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:22,610 INFO L225 Difference]: With dead ends: 58 [2021-10-11 02:33:22,610 INFO L226 Difference]: Without dead ends: 27 [2021-10-11 02:33:22,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:22,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-11 02:33:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-11 02:33:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 02:33:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2021-10-11 02:33:22,651 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2021-10-11 02:33:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:22,652 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2021-10-11 02:33:22,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:33:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-10-11 02:33:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:22,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:22,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:22,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:33:22,873 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2021-10-11 02:33:22,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:22,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385985053] [2021-10-11 02:33:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 02:33:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:23,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:33:23,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:23,855 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 02:33:23,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:23,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385985053] [2021-10-11 02:33:23,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:23,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:23,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066650703] [2021-10-11 02:33:23,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:23,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:23,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:23,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:23,860 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2021-10-11 02:33:26,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:26,156 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2021-10-11 02:33:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:26,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:33:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:26,158 INFO L225 Difference]: With dead ends: 32 [2021-10-11 02:33:26,158 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:33:26,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:33:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:33:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:33:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-10-11 02:33:26,163 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-10-11 02:33:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:26,163 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-10-11 02:33:26,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-10-11 02:33:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:33:26,164 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:26,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:26,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:33:26,376 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:26,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2021-10-11 02:33:26,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:26,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091200698] [2021-10-11 02:33:26,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/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 02:33:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:27,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-11 02:33:27,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:27,458 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 02:33:27,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:27,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091200698] [2021-10-11 02:33:27,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:27,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:33:27,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448347669] [2021-10-11 02:33:27,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:33:27,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:27,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:33:27,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:27,462 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 7 states. [2021-10-11 02:33:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:28,400 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-10-11 02:33:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:33:28,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2021-10-11 02:33:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:28,401 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:33:28,401 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:33:28,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:33:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:33:28,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:33:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:33:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:33:28,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 02:33:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:28,403 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:33:28,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:33:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:33:28,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:33:28,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:33:28,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:33:28,985 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16 [2021-10-11 02:33:28,996 INFO L262 CegarLoopResult]: For program point L97(lines 97 109) no Hoare annotation was computed. [2021-10-11 02:33:28,996 INFO L262 CegarLoopResult]: For program point L126(lines 126 129) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L265 CegarLoopResult]: At program point L131(lines 115 132) the Hoare annotation is: true [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2021-10-11 02:33:28,997 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L262 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L262 CegarLoopResult]: For program point L70(lines 70 86) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L262 CegarLoopResult]: For program point L99(lines 99 103) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L262 CegarLoopResult]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2021-10-11 02:33:28,998 INFO L258 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2021-10-11 02:33:28,998 INFO L258 CegarLoopResult]: At program point L108(lines 34 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2021-10-11 02:33:28,999 INFO L262 CegarLoopResult]: For program point L71(lines 71 78) no Hoare annotation was computed. [2021-10-11 02:33:28,999 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2021-10-11 02:33:28,999 INFO L258 CegarLoopResult]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x))) [2021-10-11 02:33:28,999 INFO L262 CegarLoopResult]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2021-10-11 02:33:28,999 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2021-10-11 02:33:28,999 INFO L258 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2021-10-11 02:33:28,999 INFO L262 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2021-10-11 02:33:29,000 INFO L262 CegarLoopResult]: For program point L51(lines 51 59) no Hoare annotation was computed. [2021-10-11 02:33:29,000 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2021-10-11 02:33:29,001 INFO L258 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= |ULTIMATE.start___ieee754_logf_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2021-10-11 02:33:29,001 INFO L262 CegarLoopResult]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-10-11 02:33:29,002 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-11 02:33:29,002 INFO L262 CegarLoopResult]: For program point L105(lines 105 108) no Hoare annotation was computed. [2021-10-11 02:33:29,002 INFO L262 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-10-11 02:33:29,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,015 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,024 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,028 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,044 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,045 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,045 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,045 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,046 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,048 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:29 BoogieIcfgContainer [2021-10-11 02:33:29,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:29,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:29,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:29,057 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:29,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:21" (3/4) ... [2021-10-11 02:33:29,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:33:29,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:33:29,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:33:29,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:29,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:29,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:33:29,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2021-10-11 02:33:29,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2021-10-11 02:33:29,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31324a47-1fd0-4bba-b39d-7bd2a4e3595b/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:29,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:29,207 INFO L168 Benchmark]: Toolchain (without parser) took 30581.86 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 34.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,208 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 51.8 MB in the beginning and 51.7 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:29,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.92 ms. Allocated memory is still 71.3 MB. Free memory was 53.1 MB in the beginning and 52.2 MB in the end (delta: 960.4 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.99 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 50.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,210 INFO L168 Benchmark]: Boogie Preprocessor took 81.87 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 48.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,211 INFO L168 Benchmark]: RCFGBuilder took 22199.72 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 49.1 MB in the end (delta: -867.5 kB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,211 INFO L168 Benchmark]: TraceAbstraction took 7567.74 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 38.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,212 INFO L168 Benchmark]: Witness Printer took 149.43 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 34.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:29,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 51.8 MB in the beginning and 51.7 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.92 ms. Allocated memory is still 71.3 MB. Free memory was 53.1 MB in the beginning and 52.2 MB in the end (delta: 960.4 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.99 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 50.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.87 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 48.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22199.72 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 49.1 MB in the end (delta: -867.5 kB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7567.74 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 38.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Witness Printer took 149.43 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 34.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 113]: Loop Invariant [2021-10-11 02:33:29,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,237 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,247 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,248 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 34]: Loop Invariant [2021-10-11 02:33:29,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant [2021-10-11 02:33:29,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:33:29,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:29,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 16 SDslu, 22 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 107 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 1921 SizeOfPredicates, 16 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...