./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f171dd4f575b92a9302785470b2bac89695cbf3 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f171dd4f575b92a9302785470b2bac89695cbf3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:43:31,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:43:31,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:43:31,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:43:31,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:43:31,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:43:31,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:43:31,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:43:31,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:43:31,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:43:31,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:43:31,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:43:31,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:43:31,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:43:31,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:43:31,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:43:31,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:43:31,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:43:31,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:43:31,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:43:31,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:43:31,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:43:32,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:43:32,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:43:32,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:43:32,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:43:32,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:43:32,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:43:32,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:43:32,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:43:32,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:43:32,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:43:32,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:43:32,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:43:32,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:43:32,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:43:32,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:43:32,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:43:32,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:43:32,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:43:32,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:43:32,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:43:32,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:43:32,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:43:32,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:43:32,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:43:32,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:43:32,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:43:32,030 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:43:32,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:43:32,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:43:32,030 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:43:32,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:43:32,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:43:32,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:43:32,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:43:32,032 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:43:32,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:43:32,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:43:32,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:43:32,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:43:32,033 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-12-09 10:43:32,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:43:32,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:43:32,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:43:32,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:43:32,245 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:43:32,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-12-09 10:43:32,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/573eed179/9b1423281fe4483d9dafa4bba2487fd0/FLAGe26a029de [2020-12-09 10:43:32,661 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:43:32,661 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-12-09 10:43:32,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/573eed179/9b1423281fe4483d9dafa4bba2487fd0/FLAGe26a029de [2020-12-09 10:43:32,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/573eed179/9b1423281fe4483d9dafa4bba2487fd0 [2020-12-09 10:43:32,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:43:32,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:43:32,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:43:32,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:43:32,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:43:32,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f04969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32, skipping insertion in model container [2020-12-09 10:43:32,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:43:32,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:43:32,861 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2020-12-09 10:43:32,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:43:32,872 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:43:32,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2020-12-09 10:43:32,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:43:32,920 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:43:32,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32 WrapperNode [2020-12-09 10:43:32,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:43:32,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:43:32,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:43:32,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:43:32,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:43:32,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:43:32,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:43:32,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:43:32,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... [2020-12-09 10:43:32,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:43:32,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:43:32,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:43:32,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:43:32,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:43:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:43:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 10:43:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 10:43:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:43:33,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:43:33,351 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 10:43:33,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:33 BoogieIcfgContainer [2020-12-09 10:43:33,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:43:33,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:43:33,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:43:33,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:43:33,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:43:32" (1/3) ... [2020-12-09 10:43:33,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a3e375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:43:33, skipping insertion in model container [2020-12-09 10:43:33,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:32" (2/3) ... [2020-12-09 10:43:33,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a3e375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:43:33, skipping insertion in model container [2020-12-09 10:43:33,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:33" (3/3) ... [2020-12-09 10:43:33,361 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-12-09 10:43:33,374 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:43:33,377 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:43:33,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:43:33,401 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:43:33,402 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:43:33,402 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:43:33,402 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:43:33,402 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:43:33,402 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:43:33,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:43:33,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:43:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-12-09 10:43:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 10:43:33,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:43:33,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:43:33,415 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:43:33,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:43:33,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1825979879, now seen corresponding path program 1 times [2020-12-09 10:43:33,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:43:33,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573639406] [2020-12-09 10:43:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:43:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:43:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:43:33,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573639406] [2020-12-09 10:43:33,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:43:33,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:43:33,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374874550] [2020-12-09 10:43:33,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:43:33,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:43:33,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:43:33,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:43:33,581 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-12-09 10:43:33,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:43:33,596 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2020-12-09 10:43:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:43:33,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 10:43:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:43:33,604 INFO L225 Difference]: With dead ends: 59 [2020-12-09 10:43:33,604 INFO L226 Difference]: Without dead ends: 28 [2020-12-09 10:43:33,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:43:33,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-09 10:43:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-09 10:43:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 10:43:33,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-12-09 10:43:33,628 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2020-12-09 10:43:33,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:43:33,629 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-12-09 10:43:33,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:43:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-12-09 10:43:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 10:43:33,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:43:33,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:43:33,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:43:33,630 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:43:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:43:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1296270310, now seen corresponding path program 1 times [2020-12-09 10:43:33,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:43:33,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423522345] [2020-12-09 10:43:33,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:43:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:43:33,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:43:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:43:33,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:43:33,715 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 10:43:33,715 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:43:33,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 10:43:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:43:33 BoogieIcfgContainer [2020-12-09 10:43:33,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:43:33,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:43:33,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:43:33,739 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:43:33,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:33" (3/4) ... [2020-12-09 10:43:33,742 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 10:43:33,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:43:33,743 INFO L168 Benchmark]: Toolchain (without parser) took 1063.61 ms. Allocated memory is still 102.8 MB. Free memory was 70.2 MB in the beginning and 63.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:43:33,744 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory was 84.0 MB in the beginning and 84.0 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:43:33,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.93 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 77.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:43:33,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.98 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 75.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:43:33,745 INFO L168 Benchmark]: Boogie Preprocessor took 31.42 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:43:33,746 INFO L168 Benchmark]: RCFGBuilder took 358.57 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 43.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:43:33,746 INFO L168 Benchmark]: TraceAbstraction took 383.80 ms. Allocated memory is still 102.8 MB. Free memory was 42.7 MB in the beginning and 64.5 MB in the end (delta: -21.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:43:33,747 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 102.8 MB. Free memory was 64.5 MB in the beginning and 63.9 MB in the end (delta: 523.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:43:33,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory was 84.0 MB in the beginning and 84.0 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.93 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 77.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.98 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 75.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.42 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 358.57 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 43.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 383.80 ms. Allocated memory is still 102.8 MB. Free memory was 42.7 MB in the beginning and 64.5 MB in the end (delta: -21.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.10 ms. Allocated memory is still 102.8 MB. Free memory was 64.5 MB in the beginning and 63.9 MB in the end (delta: 523.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L118] float x = 0.0f / 0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float res = __ieee754_expf(x); [L15] return x != x; [L122] COND TRUE !isnan_float(res) [L123] reach_error() VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 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=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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:43:35,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:43:35,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:43:35,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:43:35,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:43:35,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:43:35,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:43:35,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:43:35,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:43:35,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:43:35,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:43:35,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:43:35,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:43:35,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:43:35,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:43:35,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:43:35,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:43:35,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:43:35,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:43:35,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:43:35,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:43:35,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:43:35,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:43:35,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:43:35,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:43:35,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:43:35,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:43:35,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:43:35,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:43:35,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:43:35,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:43:35,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:43:35,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:43:35,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:43:35,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:43:35,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:43:35,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:43:35,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:43:35,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:43:35,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:43:35,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:43:35,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:43:35,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:43:35,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:43:35,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:43:35,353 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:43:35,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:43:35,353 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:43:35,353 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:43:35,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:43:35,353 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:43:35,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:43:35,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:43:35,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:43:35,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:43:35,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:43:35,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:43:35,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:43:35,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:43:35,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:43:35,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:43:35,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:43:35,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:43:35,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:43:35,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:43:35,358 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-12-09 10:43:35,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:43:35,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:43:35,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:43:35,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:43:35,591 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:43:35,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-12-09 10:43:35,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/3f28e82c2/cde255b23fb741faac6c444aae9082cd/FLAGd03729fc7 [2020-12-09 10:43:36,023 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:43:36,024 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-12-09 10:43:36,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/3f28e82c2/cde255b23fb741faac6c444aae9082cd/FLAGd03729fc7 [2020-12-09 10:43:36,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/data/3f28e82c2/cde255b23fb741faac6c444aae9082cd [2020-12-09 10:43:36,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:43:36,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:43:36,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:43:36,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:43:36,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:43:36,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b45cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36, skipping insertion in model container [2020-12-09 10:43:36,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:43:36,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:43:36,194 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2020-12-09 10:43:36,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:43:36,218 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:43:36,252 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2020-12-09 10:43:36,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:43:36,272 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:43:36,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36 WrapperNode [2020-12-09 10:43:36,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:43:36,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:43:36,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:43:36,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:43:36,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:43:36,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:43:36,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:43:36,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:43:36,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... [2020-12-09 10:43:36,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:43:36,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:43:36,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:43:36,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:43:36,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 10:43:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:43:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:43:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 10:43:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 10:43:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:43:46,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:43:46,128 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 10:43:46,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:46 BoogieIcfgContainer [2020-12-09 10:43:46,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:43:46,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:43:46,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:43:46,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:43:46,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:43:36" (1/3) ... [2020-12-09 10:43:46,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c116211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:43:46, skipping insertion in model container [2020-12-09 10:43:46,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:43:36" (2/3) ... [2020-12-09 10:43:46,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c116211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:43:46, skipping insertion in model container [2020-12-09 10:43:46,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:46" (3/3) ... [2020-12-09 10:43:46,135 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-12-09 10:43:46,144 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:43:46,147 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:43:46,154 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:43:46,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:43:46,170 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:43:46,170 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:43:46,170 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:43:46,170 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:43:46,170 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:43:46,170 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:43:46,170 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:43:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-09 10:43:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:43:46,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:43:46,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:43:46,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:43:46,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:43:46,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-12-09 10:43:46,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:43:46,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068818004] [2020-12-09 10:43:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:43:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:43:46,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 10:43:46,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:43:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:43:46,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:43:46,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068818004] [2020-12-09 10:43:46,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:43:46,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:43:46,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570128768] [2020-12-09 10:43:46,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:43:46,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:43:46,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:43:46,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:43:46,643 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-09 10:43:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:43:46,655 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-09 10:43:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:43:46,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 10:43:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:43:46,662 INFO L225 Difference]: With dead ends: 72 [2020-12-09 10:43:46,662 INFO L226 Difference]: Without dead ends: 34 [2020-12-09 10:43:46,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:43:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-09 10:43:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-09 10:43:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-09 10:43:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-12-09 10:43:46,686 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-12-09 10:43:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:43:46,686 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-12-09 10:43:46,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:43:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-12-09 10:43:46,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 10:43:46,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:43:46,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:43:46,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:43:46,888 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:43:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:43:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-12-09 10:43:46,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:43:46,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394551581] [2020-12-09 10:43:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 10:43:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:43:47,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 10:43:47,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:43:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:43:47,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:43:47,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394551581] [2020-12-09 10:43:47,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:43:47,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 10:43:47,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673984945] [2020-12-09 10:43:47,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 10:43:47,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:43:47,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 10:43:47,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:43:47,462 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 7 states. [2020-12-09 10:44:00,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:44:00,331 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-12-09 10:44:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 10:44:00,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-09 10:44:00,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:44:00,333 INFO L225 Difference]: With dead ends: 50 [2020-12-09 10:44:00,333 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 10:44:00,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 10:44:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 10:44:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2020-12-09 10:44:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-09 10:44:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-12-09 10:44:00,338 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2020-12-09 10:44:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:44:00,338 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-12-09 10:44:00,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 10:44:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-12-09 10:44:00,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 10:44:00,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:44:00,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:44:00,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:44:00,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:44:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:44:00,544 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2020-12-09 10:44:00,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:44:00,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893650377] [2020-12-09 10:44:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 10:44:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:44:01,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 10:44:01,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:44:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:44:01,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:44:01,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893650377] [2020-12-09 10:44:01,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:44:01,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 10:44:01,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705134393] [2020-12-09 10:44:01,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:44:01,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:44:01,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:44:01,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:44:01,211 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 5 states. [2020-12-09 10:44:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:44:01,342 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-12-09 10:44:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:44:01,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 10:44:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:44:01,343 INFO L225 Difference]: With dead ends: 34 [2020-12-09 10:44:01,343 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:44:01,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:44:01,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:44:01,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:44:01,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:44:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:44:01,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-09 10:44:01,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:44:01,344 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:44:01,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:44:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:44:01,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:44:01,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:44:01,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:44:01,736 INFO L262 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L265 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-12-09 10:44:01,737 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-12-09 10:44:01,738 INFO L262 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-12-09 10:44:01,739 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-12-09 10:44:01,740 INFO L258 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x)) [2020-12-09 10:44:01,740 INFO L262 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-12-09 10:44:01,741 INFO L258 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x))) [2020-12-09 10:44:01,741 INFO L262 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-12-09 10:44:01,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:44:01,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:44:01,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:44:01 BoogieIcfgContainer [2020-12-09 10:44:01,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:44:01,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:44:01,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:44:01,757 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:44:01,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:43:46" (3/4) ... [2020-12-09 10:44:01,759 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:44:01,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 10:44:01,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 10:44:01,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:44:01,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:44:01,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-12-09 10:44:01,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-09 10:44:01,785 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result [2020-12-09 10:44:01,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_88b636f9-5f0f-4ff5-85d7-fd0c73ff1e1b/bin/utaipan/witness.graphml [2020-12-09 10:44:01,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:44:01,814 INFO L168 Benchmark]: Toolchain (without parser) took 25770.34 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 46.1 MB in the beginning and 35.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,814 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:44:01,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.23 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 43.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 41.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,815 INFO L168 Benchmark]: Boogie Preprocessor took 29.46 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 39.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:44:01,815 INFO L168 Benchmark]: RCFGBuilder took 9787.04 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.5 MB in the beginning and 48.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,816 INFO L168 Benchmark]: TraceAbstraction took 15625.34 ms. Allocated memory is still 81.8 MB. Free memory was 48.1 MB in the beginning and 41.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,816 INFO L168 Benchmark]: Witness Printer took 56.10 ms. Allocated memory is still 81.8 MB. Free memory was 41.8 MB in the beginning and 35.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:44:01,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.23 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 43.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 41.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.46 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 39.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 9787.04 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.5 MB in the beginning and 48.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15625.34 ms. Allocated memory is still 81.8 MB. Free memory was 48.1 MB in the beginning and 41.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Witness Printer took 56.10 ms. Allocated memory is still 81.8 MB. Free memory was 41.8 MB in the beginning and 35.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 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 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-12-09 10:44:01,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-12-09 10:44:01,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 43]: Loop Invariant [2020-12-09 10:44:01,825 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 10:44:01,825 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:44:01,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 57 SDslu, 102 SDs, 0 SdLazy, 57 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 4 QuantifiedInterpolants, 1271 SizeOfPredicates, 14 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 22 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...