./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/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 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................................................... 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_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/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 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:13:14,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:13:14,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:13:14,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:13:14,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:13:14,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:13:14,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:13:14,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:13:14,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:13:14,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:13:14,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:13:14,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:13:14,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:13:14,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:13:14,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:13:14,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:13:14,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:13:14,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:13:14,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:13:14,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:13:14,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:13:14,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:13:14,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:13:14,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:13:14,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:13:14,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:13:14,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:13:14,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:13:14,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:13:14,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:13:14,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:13:14,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:13:14,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:13:14,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:13:14,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:13:14,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:13:14,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:13:14,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:13:14,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:13:14,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:13:14,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:13:14,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:13:14,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:13:14,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:13:14,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:13:14,989 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:13:14,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:13:14,990 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:13:14,990 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:13:14,990 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:13:14,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:13:14,991 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:13:14,992 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:13:14,992 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:13:14,993 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:13:14,993 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:13:14,993 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:13:14,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:13:14,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:13:14,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:13:14,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:13:14,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:13:14,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:13:14,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:13:14,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:13:14,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:13:14,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:13:14,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:13:14,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:13:14,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:13:14,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:13:15,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:13:15,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:13:15,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:13:15,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:13:15,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:13:15,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:13:15,002 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:13:15,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:13:15,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:13:15,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:13:15,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:13:15,004 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_2a9e476a-9620-4176-92bf-0eb8b002fbcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-30 03:13:15,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:13:15,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:13:15,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:13:15,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:13:15,390 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:13:15,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-30 03:13:15,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/26b9d8704/6560ce2e62e848188b1f02a574d4711b/FLAG0e715bc80 [2020-11-30 03:13:15,965 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:13:15,965 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-30 03:13:15,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/26b9d8704/6560ce2e62e848188b1f02a574d4711b/FLAG0e715bc80 [2020-11-30 03:13:16,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/26b9d8704/6560ce2e62e848188b1f02a574d4711b [2020-11-30 03:13:16,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:13:16,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:13:16,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:13:16,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:13:16,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:13:16,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b2fe30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16, skipping insertion in model container [2020-11-30 03:13:16,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:13:16,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:13:16,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:13:16,648 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:13:16,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:13:16,730 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:13:16,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16 WrapperNode [2020-11-30 03:13:16,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:13:16,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:13:16,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:13:16,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:13:16,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:13:16,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:13:16,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:13:16,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:13:16,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... [2020-11-30 03:13:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:13:16,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:13:16,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:13:16,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:13:16,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:13:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:13:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:13:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 03:13:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:13:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 03:13:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:13:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:13:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:13:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:13:17,915 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:13:17,916 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 03:13:17,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:17 BoogieIcfgContainer [2020-11-30 03:13:17,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:13:17,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:13:17,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:13:17,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:13:17,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:13:16" (1/3) ... [2020-11-30 03:13:17,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f36e1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:13:17, skipping insertion in model container [2020-11-30 03:13:17,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:16" (2/3) ... [2020-11-30 03:13:17,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f36e1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:13:17, skipping insertion in model container [2020-11-30 03:13:17,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:17" (3/3) ... [2020-11-30 03:13:17,934 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-30 03:13:17,949 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:13:17,955 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:13:17,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:13:18,016 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:13:18,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:13:18,017 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:13:18,017 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:13:18,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:13:18,018 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:13:18,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:13:18,018 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:13:18,041 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-11-30 03:13:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:13:18,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:18,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:18,058 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1460870729, now seen corresponding path program 1 times [2020-11-30 03:13:18,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:13:18,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821060737] [2020-11-30 03:13:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:13:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:18,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821060737] [2020-11-30 03:13:18,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:18,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:13:18,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289680327] [2020-11-30 03:13:18,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:13:18,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:13:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:13:18,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:13:18,340 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-11-30 03:13:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:18,374 INFO L93 Difference]: Finished difference Result 78 states and 125 transitions. [2020-11-30 03:13:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:13:18,377 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 03:13:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:18,402 INFO L225 Difference]: With dead ends: 78 [2020-11-30 03:13:18,408 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 03:13:18,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:13:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 03:13:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-30 03:13:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 03:13:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-11-30 03:13:18,468 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 9 [2020-11-30 03:13:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:18,469 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-11-30 03:13:18,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:13:18,470 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-11-30 03:13:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:13:18,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:18,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:18,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:13:18,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:18,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:18,479 INFO L82 PathProgramCache]: Analyzing trace with hash -110726150, now seen corresponding path program 1 times [2020-11-30 03:13:18,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:13:18,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804582600] [2020-11-30 03:13:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:13:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:18,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804582600] [2020-11-30 03:13:18,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:18,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:13:18,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944561437] [2020-11-30 03:13:18,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:13:18,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:13:18,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:13:18,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:13:18,598 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 3 states. [2020-11-30 03:13:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:18,639 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-11-30 03:13:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:13:18,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 03:13:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:18,644 INFO L225 Difference]: With dead ends: 69 [2020-11-30 03:13:18,644 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 03:13:18,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:13:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 03:13:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-30 03:13:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 03:13:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-11-30 03:13:18,662 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2020-11-30 03:13:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:18,662 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-11-30 03:13:18,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:13:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-11-30 03:13:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:13:18,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:18,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:18,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:13:18,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:18,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:18,670 INFO L82 PathProgramCache]: Analyzing trace with hash 809008609, now seen corresponding path program 1 times [2020-11-30 03:13:18,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:13:18,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183481650] [2020-11-30 03:13:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:13:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:13:18,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:13:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:13:18,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:13:18,890 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:13:18,891 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:13:18,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:13:18,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:13:18 BoogieIcfgContainer [2020-11-30 03:13:18,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:13:18,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:13:18,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:13:18,967 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:13:18,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:17" (3/4) ... [2020-11-30 03:13:18,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:13:18,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:13:18,975 INFO L168 Benchmark]: Toolchain (without parser) took 2644.18 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 68.1 MB in the beginning and 88.4 MB in the end (delta: -20.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:13:18,975 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:13:18,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.31 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 68.1 MB in the end (delta: -152.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:18,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.12 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 65.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:18,978 INFO L168 Benchmark]: Boogie Preprocessor took 65.96 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 63.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:18,980 INFO L168 Benchmark]: RCFGBuilder took 1071.02 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.5 MB in the beginning and 73.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:18,981 INFO L168 Benchmark]: TraceAbstraction took 1042.46 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 88.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:18,981 INFO L168 Benchmark]: Witness Printer took 5.82 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 88.4 MB in the end (delta: 514.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:13:18,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.31 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 68.1 MB in the end (delta: -152.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.12 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 65.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.96 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 63.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1071.02 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.5 MB in the beginning and 73.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1042.46 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 88.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.82 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 88.4 MB in the end (delta: 514.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L172] float res = __ieee754_log10f(x); [L147] return x != x; [L175] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:13:21,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:13:21,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:13:22,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:13:22,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:13:22,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:13:22,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:13:22,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:13:22,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:13:22,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:13:22,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:13:22,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:13:22,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:13:22,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:13:22,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:13:22,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:13:22,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:13:22,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:13:22,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:13:22,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:13:22,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:13:22,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:13:22,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:13:22,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:13:22,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:13:22,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:13:22,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:13:22,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:13:22,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:13:22,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:13:22,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:13:22,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:13:22,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:13:22,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:13:22,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:13:22,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:13:22,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:13:22,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:13:22,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:13:22,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:13:22,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:13:22,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:13:22,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:13:22,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:13:22,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:13:22,171 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:13:22,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:13:22,172 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:13:22,172 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:13:22,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:13:22,173 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:13:22,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:13:22,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:13:22,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:13:22,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:13:22,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:13:22,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:13:22,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:13:22,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:13:22,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:13:22,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:13:22,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:13:22,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:13:22,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:13:22,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:13:22,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:13:22,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:13:22,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:13:22,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:13:22,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:13:22,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:13:22,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:13:22,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:13:22,180 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:13:22,181 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:13:22,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:13:22,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:13:22,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:13:22,208 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_2a9e476a-9620-4176-92bf-0eb8b002fbcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-30 03:13:22,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:13:22,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:13:22,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:13:22,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:13:22,739 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:13:22,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-30 03:13:22,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/ffc7f9e2c/89146a552f87441bb1e42dfdffdc706c/FLAG33bf0f3e4 [2020-11-30 03:13:23,556 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:13:23,556 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-30 03:13:23,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/ffc7f9e2c/89146a552f87441bb1e42dfdffdc706c/FLAG33bf0f3e4 [2020-11-30 03:13:23,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/data/ffc7f9e2c/89146a552f87441bb1e42dfdffdc706c [2020-11-30 03:13:23,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:13:23,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:13:23,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:13:23,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:13:23,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:13:23,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:13:23" (1/1) ... [2020-11-30 03:13:23,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221e5fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:23, skipping insertion in model container [2020-11-30 03:13:23,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:13:23" (1/1) ... [2020-11-30 03:13:23,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:13:23,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:13:24,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:13:24,255 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:13:24,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:13:24,428 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:13:24,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24 WrapperNode [2020-11-30 03:13:24,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:13:24,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:13:24,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:13:24,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:13:24,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:13:24,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:13:24,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:13:24,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:13:24,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... [2020-11-30 03:13:24,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:13:24,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:13:24,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:13:24,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:13:24,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:13:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:13:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:13:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 03:13:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:13:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:13:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:13:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 03:13:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 03:13:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:13:42,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:13:42,048 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 03:13:42,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:42 BoogieIcfgContainer [2020-11-30 03:13:42,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:13:42,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:13:42,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:13:42,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:13:42,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:13:23" (1/3) ... [2020-11-30 03:13:42,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc89351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:13:42, skipping insertion in model container [2020-11-30 03:13:42,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:13:24" (2/3) ... [2020-11-30 03:13:42,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc89351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:13:42, skipping insertion in model container [2020-11-30 03:13:42,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:42" (3/3) ... [2020-11-30 03:13:42,066 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-30 03:13:42,080 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:13:42,086 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:13:42,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:13:42,133 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:13:42,133 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:13:42,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:13:42,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:13:42,134 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:13:42,134 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:13:42,134 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:13:42,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:13:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-30 03:13:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:13:42,151 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:42,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:42,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:42,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:42,159 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-11-30 03:13:42,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:13:42,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380406492] [2020-11-30 03:13:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:13:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:43,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:13:43,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:13:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:43,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:13:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:43,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380406492] [2020-11-30 03:13:43,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:43,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:13:43,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128070289] [2020-11-30 03:13:43,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:13:43,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:13:43,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:13:43,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:13:43,275 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-11-30 03:13:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:43,299 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-11-30 03:13:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:13:43,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 03:13:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:43,312 INFO L225 Difference]: With dead ends: 100 [2020-11-30 03:13:43,312 INFO L226 Difference]: Without dead ends: 47 [2020-11-30 03:13:43,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:13:43,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-30 03:13:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-30 03:13:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-30 03:13:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-11-30 03:13:43,360 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-11-30 03:13:43,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:43,361 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-30 03:13:43,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:13:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-30 03:13:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:13:43,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:43,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:43,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:13:43,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:43,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:43,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-11-30 03:13:43,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:13:43,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991531713] [2020-11-30 03:13:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:13:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:44,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:13:44,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:13:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:44,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:13:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:44,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991531713] [2020-11-30 03:13:44,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:44,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 03:13:44,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961248322] [2020-11-30 03:13:44,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:13:44,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:13:44,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:13:44,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:13:44,568 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-11-30 03:13:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:44,617 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-11-30 03:13:44,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:13:44,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 03:13:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:44,620 INFO L225 Difference]: With dead ends: 87 [2020-11-30 03:13:44,621 INFO L226 Difference]: Without dead ends: 47 [2020-11-30 03:13:44,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:13:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-30 03:13:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-30 03:13:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-30 03:13:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-30 03:13:44,647 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-11-30 03:13:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:44,648 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-30 03:13:44,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:13:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-11-30 03:13:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 03:13:44,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:44,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:44,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:13:44,863 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:44,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-11-30 03:13:44,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:13:44,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537627776] [2020-11-30 03:13:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:13:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:45,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 03:13:45,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:13:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:46,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:13:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:46,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537627776] [2020-11-30 03:13:46,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:46,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 03:13:46,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551409992] [2020-11-30 03:13:46,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:13:46,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:13:46,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:13:46,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:13:46,342 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-11-30 03:13:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:47,360 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-11-30 03:13:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:13:47,418 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-30 03:13:47,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:47,418 INFO L225 Difference]: With dead ends: 52 [2020-11-30 03:13:47,418 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 03:13:47,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:13:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 03:13:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 03:13:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 03:13:47,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-30 03:13:47,431 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-30 03:13:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:47,431 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-30 03:13:47,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:13:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-30 03:13:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 03:13:47,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:13:47,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:13:47,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:13:47,657 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:13:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:13:47,658 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-11-30 03:13:47,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:13:47,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794476490] [2020-11-30 03:13:47,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 03:13:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:13:48,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 03:13:48,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:13:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:48,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:13:51,405 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-11-30 03:13:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:13:51,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794476490] [2020-11-30 03:13:51,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:13:51,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 03:13:51,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946328317] [2020-11-30 03:13:51,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:13:51,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:13:51,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:13:51,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:13:51,425 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-11-30 03:13:53,010 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2020-11-30 03:13:53,243 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-11-30 03:13:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:13:53,244 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-30 03:13:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:13:53,244 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-30 03:13:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:13:53,245 INFO L225 Difference]: With dead ends: 18 [2020-11-30 03:13:53,245 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:13:53,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:13:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:13:53,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:13:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:13:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:13:53,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 03:13:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:13:53,247 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:13:53,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:13:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:13:53,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:13:53,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 03:13:53,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:13:53,860 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-11-30 03:13:53,893 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-30 03:13:53,893 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-30 03:13:53,893 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-30 03:13:53,893 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-30 03:13:53,894 INFO L270 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 03:13:53,894 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:13:53,894 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 03:13:53,894 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-30 03:13:53,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:13:53,894 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-30 03:13:53,895 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:13:53,895 INFO L274 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2020-11-30 03:13:53,895 INFO L270 CegarLoopResult]: At program point L152-2(lines 152 156) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 03:13:53,895 INFO L274 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2020-11-30 03:13:53,895 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-30 03:13:53,895 INFO L270 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 03:13:53,896 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2020-11-30 03:13:53,897 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-30 03:13:53,897 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-30 03:13:53,897 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-30 03:13:53,898 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2020-11-30 03:13:53,901 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-30 03:13:53,901 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-30 03:13:53,901 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-30 03:13:53,901 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-30 03:13:53,901 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 03:13:53,902 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:13:53,902 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:13:53,902 INFO L277 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2020-11-30 03:13:53,902 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-30 03:13:53,902 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:13:53,902 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-30 03:13:53,903 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-30 03:13:53,903 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-30 03:13:53,903 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-30 03:13:53,903 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-30 03:13:53,903 INFO L270 CegarLoopResult]: At program point L158(lines 150 159) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 03:13:53,903 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-30 03:13:53,903 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-30 03:13:53,904 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-30 03:13:53,904 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-30 03:13:53,904 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-30 03:13:53,904 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-30 03:13:53,904 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-30 03:13:53,904 INFO L274 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2020-11-30 03:13:53,904 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-30 03:13:53,905 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-30 03:13:53,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,921 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,932 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,940 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:53,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:53,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:53,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:13:53 BoogieIcfgContainer [2020-11-30 03:13:53,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:13:53,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:13:53,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:13:53,967 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:13:53,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:13:42" (3/4) ... [2020-11-30 03:13:53,971 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:13:53,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-11-30 03:13:53,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 03:13:53,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:13:53,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:13:54,028 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 03:13:54,029 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 03:13:54,030 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 03:13:54,032 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 03:13:54,033 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 03:13:54,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2a9e476a-9620-4176-92bf-0eb8b002fbcc/bin/utaipan/witness.graphml [2020-11-30 03:13:54,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:13:54,135 INFO L168 Benchmark]: Toolchain (without parser) took 30258.72 ms. Allocated memory is still 79.7 MB. Free memory was 46.0 MB in the beginning and 33.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,136 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 79.7 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:13:54,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.40 ms. Allocated memory is still 79.7 MB. Free memory was 45.8 MB in the beginning and 60.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.29 ms. Allocated memory is still 79.7 MB. Free memory was 60.8 MB in the beginning and 58.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,137 INFO L168 Benchmark]: Boogie Preprocessor took 80.88 ms. Allocated memory is still 79.7 MB. Free memory was 58.1 MB in the beginning and 56.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,138 INFO L168 Benchmark]: RCFGBuilder took 17453.37 ms. Allocated memory is still 79.7 MB. Free memory was 55.7 MB in the beginning and 51.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,138 INFO L168 Benchmark]: TraceAbstraction took 11913.09 ms. Allocated memory is still 79.7 MB. Free memory was 51.2 MB in the beginning and 39.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,139 INFO L168 Benchmark]: Witness Printer took 167.92 ms. Allocated memory is still 79.7 MB. Free memory was 39.1 MB in the beginning and 33.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:13:54,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 79.7 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 552.40 ms. Allocated memory is still 79.7 MB. Free memory was 45.8 MB in the beginning and 60.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.29 ms. Allocated memory is still 79.7 MB. Free memory was 60.8 MB in the beginning and 58.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.88 ms. Allocated memory is still 79.7 MB. Free memory was 58.1 MB in the beginning and 56.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 17453.37 ms. Allocated memory is still 79.7 MB. Free memory was 55.7 MB in the beginning and 51.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11913.09 ms. Allocated memory is still 79.7 MB. Free memory was 51.2 MB in the beginning and 39.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 167.92 ms. Allocated memory is still 79.7 MB. Free memory was 39.1 MB in the beginning and 33.4 MB in the end (delta: 5.7 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,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[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2020-11-30 03:13:54,165 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,167 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant [2020-11-30 03:13:54,172 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-11-30 03:13:54,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-11-30 03:13:54,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant [2020-11-30 03:13:54,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-30 03:13:54,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:13:54,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:13:54,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 39 SDslu, 132 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 137 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 9688 SizeOfPredicates, 17 NumberOfNonLiveVariables, 285 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...