./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_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:12,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:12,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:12,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:12,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:12,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:12,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:12,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:12,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:12,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:12,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:12,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:12,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:12,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:12,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:12,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:12,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:12,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:12,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:12,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:12,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:12,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:12,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:12,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:12,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:12,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:12,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:12,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:12,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:12,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:12,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:12,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:12,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:12,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:12,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:12,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:12,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:12,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:12,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:12,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:12,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:12,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:13,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:13,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:13,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:13,009 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:13,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:13,009 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:13,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:13,010 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:13,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:13,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:13,011 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:13,011 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:13,012 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:13,012 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:13,012 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:13,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:13,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:13,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:13,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:13,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:13,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:13,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:13,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:13,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:13,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:13,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:13,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:13,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:13,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:13,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:13,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:13,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:13,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:13,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:13,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:13,017 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:13,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:13,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:13,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:13,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:13,018 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_f7056f9d-8ce9-4c9a-baad-b50498328f16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-28 07:38:13,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:13,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:13,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:13,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:13,327 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:13,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-28 07:38:13,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/de1b5f873/9d167b36591042afb289d003347504e1/FLAG7c6355d7e [2020-11-28 07:38:13,901 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:13,902 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-28 07:38:13,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/de1b5f873/9d167b36591042afb289d003347504e1/FLAG7c6355d7e [2020-11-28 07:38:14,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/de1b5f873/9d167b36591042afb289d003347504e1 [2020-11-28 07:38:14,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:14,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:14,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:14,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:14,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:14,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bf9037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14, skipping insertion in model container [2020-11-28 07:38:14,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:14,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:14,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:14,573 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:14,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:14,634 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:14,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14 WrapperNode [2020-11-28 07:38:14,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:14,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:14,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:14,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:14,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:14,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:14,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:14,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:14,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... [2020-11-28 07:38:14,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:14,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:14,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:14,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:14,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:38:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:38:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:38:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:38:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:38:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:38:15,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:15,725 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-28 07:38:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:15 BoogieIcfgContainer [2020-11-28 07:38:15,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:15,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:15,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:15,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:15,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:14" (1/3) ... [2020-11-28 07:38:15,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e9551d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:15, skipping insertion in model container [2020-11-28 07:38:15,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:14" (2/3) ... [2020-11-28 07:38:15,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e9551d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:15, skipping insertion in model container [2020-11-28 07:38:15,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:15" (3/3) ... [2020-11-28 07:38:15,741 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-28 07:38:15,753 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:15,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:15,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:15,806 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:15,806 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:15,806 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:15,807 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:15,807 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:15,807 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:15,807 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:15,807 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-11-28 07:38:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:38:15,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:15,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:15,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:15,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:15,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1460870729, now seen corresponding path program 1 times [2020-11-28 07:38:15,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:15,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524265696] [2020-11-28 07:38:15,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:16,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524265696] [2020-11-28 07:38:16,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:16,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:38:16,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380499422] [2020-11-28 07:38:16,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:38:16,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:16,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:38:16,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:38:16,026 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-11-28 07:38:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:16,055 INFO L93 Difference]: Finished difference Result 78 states and 125 transitions. [2020-11-28 07:38:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:38:16,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 07:38:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:16,065 INFO L225 Difference]: With dead ends: 78 [2020-11-28 07:38:16,065 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 07:38:16,068 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 [2020-11-28 07:38:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 07:38:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 07:38:16,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 07:38:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-11-28 07:38:16,118 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 9 [2020-11-28 07:38:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:16,119 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-11-28 07:38:16,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:38:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-11-28 07:38:16,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:38:16,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:16,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:16,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:38:16,121 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:16,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:16,128 INFO L82 PathProgramCache]: Analyzing trace with hash -110726150, now seen corresponding path program 1 times [2020-11-28 07:38:16,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:16,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928257085] [2020-11-28 07:38:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:16,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928257085] [2020-11-28 07:38:16,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:16,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:38:16,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761516700] [2020-11-28 07:38:16,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:38:16,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:16,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:38:16,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:38:16,221 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 3 states. [2020-11-28 07:38:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:16,263 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-11-28 07:38:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:38:16,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 07:38:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:16,267 INFO L225 Difference]: With dead ends: 69 [2020-11-28 07:38:16,267 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 07:38:16,268 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 [2020-11-28 07:38:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 07:38:16,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 07:38:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 07:38:16,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-11-28 07:38:16,274 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2020-11-28 07:38:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:16,276 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-11-28 07:38:16,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:38:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-11-28 07:38:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:38:16,278 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:16,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:16,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:38:16,279 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:16,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:16,284 INFO L82 PathProgramCache]: Analyzing trace with hash 809008609, now seen corresponding path program 1 times [2020-11-28 07:38:16,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:16,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673356767] [2020-11-28 07:38:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:16,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:16,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:16,417 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:38:16,419 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:38:16,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:38:16,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:16 BoogieIcfgContainer [2020-11-28 07:38:16,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:16,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:16,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:16,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:16,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:15" (3/4) ... [2020-11-28 07:38:16,476 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:38:16,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:16,478 INFO L168 Benchmark]: Toolchain (without parser) took 2196.08 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 70.0 MB in the beginning and 60.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,479 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 55.4 MB in the beginning and 55.4 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:16,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 73.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.87 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,481 INFO L168 Benchmark]: Boogie Preprocessor took 73.55 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 69.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,482 INFO L168 Benchmark]: RCFGBuilder took 960.35 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.0 MB in the beginning and 93.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,483 INFO L168 Benchmark]: TraceAbstraction took 741.89 ms. Allocated memory is still 121.6 MB. Free memory was 93.2 MB in the beginning and 61.2 MB in the end (delta: 32.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:16,484 INFO L168 Benchmark]: Witness Printer took 4.74 ms. Allocated memory is still 121.6 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:16,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 55.4 MB in the beginning and 55.4 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 73.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.87 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.55 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 69.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 960.35 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.0 MB in the beginning and 93.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 741.89 ms. Allocated memory is still 121.6 MB. Free memory was 93.2 MB in the beginning and 61.2 MB in the end (delta: 32.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.74 ms. Allocated memory is still 121.6 MB. Free memory is still 60.6 MB. 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: 0.6s, 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, 0.0s 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 [2020-11-28 07:38:19,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:19,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:19,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:19,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:19,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:19,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:19,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:19,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:19,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:19,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:19,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:19,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:19,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:19,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:19,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:19,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:19,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:19,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:19,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:19,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:19,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:19,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:19,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:19,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:19,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:19,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:19,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:19,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:19,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:19,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:19,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:19,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:19,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:19,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:19,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:19,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:19,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:19,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:19,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:19,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:19,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:38:19,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:19,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:19,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:19,304 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:19,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:19,305 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:19,305 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:19,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:19,305 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:19,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:19,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:19,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:19,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:19,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:19,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:19,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:19,308 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:19,308 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:38:19,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:38:19,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:19,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:19,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:19,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:19,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:19,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:38:19,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:19,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:19,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:19,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:19,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:19,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:19,311 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:38:19,312 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:38:19,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:19,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:19,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:19,313 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_f7056f9d-8ce9-4c9a-baad-b50498328f16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-28 07:38:19,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:19,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:19,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:19,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:19,738 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:19,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-28 07:38:19,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/929275414/0de609f2a8c54c1697622ac81a116b9d/FLAGa9d146921 [2020-11-28 07:38:20,367 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:20,368 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-28 07:38:20,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/929275414/0de609f2a8c54c1697622ac81a116b9d/FLAGa9d146921 [2020-11-28 07:38:20,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/data/929275414/0de609f2a8c54c1697622ac81a116b9d [2020-11-28 07:38:20,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:20,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:20,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:20,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:20,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:20,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:20" (1/1) ... [2020-11-28 07:38:20,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be891c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:20, skipping insertion in model container [2020-11-28 07:38:20,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:20" (1/1) ... [2020-11-28 07:38:20,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:20,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:20,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:21,004 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:21,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:21,086 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:21,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21 WrapperNode [2020-11-28 07:38:21,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:21,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:21,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:21,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:21,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:21,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:21,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:21,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:21,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... [2020-11-28 07:38:21,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:21,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:21,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:21,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:21,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:38:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:38:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:38:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:38:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:38:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:38:39,417 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:39,417 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-28 07:38:39,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39 BoogieIcfgContainer [2020-11-28 07:38:39,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:39,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:39,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:39,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:39,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:20" (1/3) ... [2020-11-28 07:38:39,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddefeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:39, skipping insertion in model container [2020-11-28 07:38:39,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:21" (2/3) ... [2020-11-28 07:38:39,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddefeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:39, skipping insertion in model container [2020-11-28 07:38:39,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39" (3/3) ... [2020-11-28 07:38:39,439 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-28 07:38:39,452 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:39,457 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:39,471 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:39,529 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:39,530 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:39,530 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:39,530 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:39,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:39,531 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:39,531 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:39,531 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-28 07:38:39,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:38:39,556 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:39,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:39,557 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:39,566 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-11-28 07:38:39,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:39,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923360528] [2020-11-28 07:38:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:40,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:38:40,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:40,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:40,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:40,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923360528] [2020-11-28 07:38:40,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:40,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:38:40,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100591790] [2020-11-28 07:38:40,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:38:40,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:40,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:38:40,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:38:40,630 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-11-28 07:38:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:40,653 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-11-28 07:38:40,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:38:40,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 07:38:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:40,664 INFO L225 Difference]: With dead ends: 100 [2020-11-28 07:38:40,664 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 07:38:40,667 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 [2020-11-28 07:38:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 07:38:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 07:38:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 07:38:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-11-28 07:38:40,702 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-11-28 07:38:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:40,703 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-28 07:38:40,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:38:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-28 07:38:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:38:40,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:40,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:40,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:38:40,918 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:40,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:40,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-11-28 07:38:40,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:40,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836788988] [2020-11-28 07:38:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:41,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:38:41,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:41,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:41,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836788988] [2020-11-28 07:38:41,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:41,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 07:38:41,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419992478] [2020-11-28 07:38:41,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:38:41,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:41,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:38:41,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:38:41,740 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-11-28 07:38:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:41,888 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-11-28 07:38:41,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:38:41,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 07:38:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:41,890 INFO L225 Difference]: With dead ends: 87 [2020-11-28 07:38:41,890 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 07:38:41,891 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 [2020-11-28 07:38:41,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 07:38:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 07:38:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 07:38:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-28 07:38:41,898 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-11-28 07:38:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:41,898 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-28 07:38:41,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:38:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-11-28 07:38:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:38:41,899 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:41,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:42,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:38:42,100 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:42,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:42,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-11-28 07:38:42,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:42,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513919735] [2020-11-28 07:38:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:42,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:38:42,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:43,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:43,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513919735] [2020-11-28 07:38:43,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:43,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 07:38:43,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903652869] [2020-11-28 07:38:43,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:38:43,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:38:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:38:43,499 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-11-28 07:38:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:44,521 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-11-28 07:38:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:38:44,575 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-28 07:38:44,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:44,576 INFO L225 Difference]: With dead ends: 52 [2020-11-28 07:38:44,576 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 07:38:44,577 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 [2020-11-28 07:38:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 07:38:44,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 07:38:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:38:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-28 07:38:44,582 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-28 07:38:44,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:44,582 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-28 07:38:44,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:38:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-28 07:38:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:38:44,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:44,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:44,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:38:44,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:44,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:44,791 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-11-28 07:38:44,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:44,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851259181] [2020-11-28 07:38:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/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 [2020-11-28 07:38:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:45,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:38:45,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:46,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:48,710 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-11-28 07:38:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:48,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851259181] [2020-11-28 07:38:48,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:48,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-28 07:38:48,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715153850] [2020-11-28 07:38:48,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:38:48,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:48,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:38:48,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:38:48,732 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-11-28 07:38:50,223 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-11-28 07:38:50,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:50,225 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-28 07:38:50,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:38:50,225 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-28 07:38:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:50,225 INFO L225 Difference]: With dead ends: 18 [2020-11-28 07:38:50,225 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:38:50,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-28 07:38:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:38:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:38:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:38:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:38:50,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-28 07:38:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:50,227 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:38:50,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:38:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:38:50,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:38:50,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:38:50,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:38:50,803 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-28 07:38:50,803 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-28 07:38:50,803 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-28 07:38:50,803 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-28 07:38:50,804 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)))) [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2020-11-28 07:38:50,804 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)))) [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2020-11-28 07:38:50,804 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-28 07:38:50,805 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)))) [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-28 07:38:50,805 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-28 07:38:50,806 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-28 07:38:50,806 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2020-11-28 07:38:50,806 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-28 07:38:50,806 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-28 07:38:50,808 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-28 07:38:50,808 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-28 07:38:50,808 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)))) [2020-11-28 07:38:50,809 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:38:50,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:38:50,809 INFO L277 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2020-11-28 07:38:50,809 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-28 07:38:50,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-28 07:38:50,810 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)))) [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-28 07:38:50,810 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-28 07:38:50,811 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-28 07:38:50,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,820 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,837 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,837 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,842 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,842 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,843 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:50 BoogieIcfgContainer [2020-11-28 07:38:50,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:50,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:50,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:50,847 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:50,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:39" (3/4) ... [2020-11-28 07:38:50,851 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:38:50,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-11-28 07:38:50,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 07:38:50,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:50,868 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:50,893 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()) [2020-11-28 07:38:50,894 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()) [2020-11-28 07:38:50,894 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()) [2020-11-28 07:38:50,895 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()) [2020-11-28 07:38:50,895 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()) [2020-11-28 07:38:50,946 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7056f9d-8ce9-4c9a-baad-b50498328f16/bin/utaipan/witness.graphml [2020-11-28 07:38:50,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:50,948 INFO L168 Benchmark]: Toolchain (without parser) took 30232.06 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 49.8 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,949 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:50,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.03 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 48.9 MB in the end (delta: 685.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.15 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,950 INFO L168 Benchmark]: Boogie Preprocessor took 49.06 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 44.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,951 INFO L168 Benchmark]: RCFGBuilder took 18226.06 ms. Allocated memory is still 69.2 MB. Free memory was 44.2 MB in the beginning and 33.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,951 INFO L168 Benchmark]: TraceAbstraction took 11424.99 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 32.9 MB in the beginning and 53.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,952 INFO L168 Benchmark]: Witness Printer took 99.89 ms. Allocated memory is still 83.9 MB. Free memory was 53.5 MB in the beginning and 47.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:50,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 370.03 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 48.9 MB in the end (delta: 685.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.15 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.06 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 44.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18226.06 ms. Allocated memory is still 69.2 MB. Free memory was 44.2 MB in the beginning and 33.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11424.99 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 32.9 MB in the beginning and 53.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Witness Printer took 99.89 ms. Allocated memory is still 83.9 MB. Free memory was 53.5 MB in the beginning and 47.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 [2020-11-28 07:38:50,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,968 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,968 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,976 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 [2020-11-28 07:38:50,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,978 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,978 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,979 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 [2020-11-28 07:38:50,982 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,982 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,992 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,992 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 [2020-11-28 07:38:50,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,996 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 [2020-11-28 07:38:50,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-28 07:38:50,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:50,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:50,999 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: 10.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 39 SDslu, 132 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 3.7s 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...