./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3696439220bbea1d6ed5ed3b22aa10206af5de ............................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3696439220bbea1d6ed5ed3b22aa10206af5de ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:25:00,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:00,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:00,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:00,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:00,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:00,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:00,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:00,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:00,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:00,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:00,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:00,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:00,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:00,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:00,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:00,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:00,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:00,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:00,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:00,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:00,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:00,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:00,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:00,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:00,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:00,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:00,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:00,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:00,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:00,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:00,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:00,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:00,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:00,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:00,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:00,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:00,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:00,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:00,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:00,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:00,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:25:00,969 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:00,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:00,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:00,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:00,971 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:00,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:00,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:00,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:25:00,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:00,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:00,973 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:00,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:00,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:00,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:00,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:00,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:00,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:00,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:00,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:00,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:00,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:25:00,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:25:00,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:00,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2019-11-19 23:25:01,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:01,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:01,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:01,164 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:01,164 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:01,165 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-19 23:25:01,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/e6a095a2b/e9bef9dcf8934deb88f494bc973b0aac/FLAGb79e82034 [2019-11-19 23:25:01,606 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:01,606 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-19 23:25:01,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/e6a095a2b/e9bef9dcf8934deb88f494bc973b0aac/FLAGb79e82034 [2019-11-19 23:25:01,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/e6a095a2b/e9bef9dcf8934deb88f494bc973b0aac [2019-11-19 23:25:01,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:01,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:01,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:01,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:01,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:01,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:01" (1/1) ... [2019-11-19 23:25:01,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426cf8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:01, skipping insertion in model container [2019-11-19 23:25:01,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:01" (1/1) ... [2019-11-19 23:25:01,972 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:01,993 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:02,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:02,213 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:02,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:02,327 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:02,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02 WrapperNode [2019-11-19 23:25:02,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:02,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:02,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:02,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:02,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:02,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:02,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:02,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:02,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... [2019-11-19 23:25:02,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:02,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:02,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:02,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:02,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:25:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 23:25:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:25:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 23:25:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:02,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:25:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:25:02,711 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:02,711 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 23:25:02,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:02 BoogieIcfgContainer [2019-11-19 23:25:02,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:02,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:02,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:02,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:02,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:01" (1/3) ... [2019-11-19 23:25:02,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73150a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:02, skipping insertion in model container [2019-11-19 23:25:02,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:02" (2/3) ... [2019-11-19 23:25:02,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73150a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:02, skipping insertion in model container [2019-11-19 23:25:02,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:02" (3/3) ... [2019-11-19 23:25:02,719 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2019-11-19 23:25:02,728 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:02,733 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:02,742 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:02,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:02,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:02,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:02,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:02,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:02,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:02,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:02,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 23:25:02,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 23:25:02,782 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:02,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:02,783 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:02,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-19 23:25:02,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:25:02,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330787349] [2019-11-19 23:25:02,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:25:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:25:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:02,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330787349] [2019-11-19 23:25:02,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:25:02,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:25:02,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926563233] [2019-11-19 23:25:02,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:25:02,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:25:02,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:25:02,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:25:02,910 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 23:25:02,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:25:02,925 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-19 23:25:02,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:25:02,926 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 23:25:02,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:25:02,934 INFO L225 Difference]: With dead ends: 48 [2019-11-19 23:25:02,934 INFO L226 Difference]: Without dead ends: 22 [2019-11-19 23:25:02,937 INFO L630 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 [2019-11-19 23:25:02,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-19 23:25:02,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 23:25:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 23:25:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 23:25:02,963 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-19 23:25:02,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:25:02,964 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 23:25:02,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:25:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-19 23:25:02,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 23:25:02,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:02,965 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:02,965 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:02,966 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-19 23:25:02,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:25:02,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691340356] [2019-11-19 23:25:02,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:25:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:03,056 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:25:03,056 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:25:03,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:25:03 BoogieIcfgContainer [2019-11-19 23:25:03,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:25:03,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:25:03,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:25:03,081 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:25:03,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:02" (3/4) ... [2019-11-19 23:25:03,085 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:25:03,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:25:03,087 INFO L168 Benchmark]: Toolchain (without parser) took 1133.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:03,087 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:03,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:03,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:03,089 INFO L168 Benchmark]: Boogie Preprocessor took 32.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:03,089 INFO L168 Benchmark]: RCFGBuilder took 313.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:03,090 INFO L168 Benchmark]: TraceAbstraction took 366.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:03,090 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:03,093 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 313.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 366.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = 0.0f; [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; [L76] float res = round_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-678e011 [2019-11-19 23:25:04,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:04,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:04,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:04,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:04,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:04,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:04,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:04,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:04,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:04,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:04,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:04,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:04,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:04,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:04,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:04,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:04,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:04,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:04,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:04,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:04,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:04,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:04,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:04,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:04,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:04,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:04,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:04,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:04,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:04,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:05,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:05,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:05,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:05,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:05,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:05,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:05,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:05,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:05,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:05,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:05,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 23:25:05,032 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:05,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:05,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:05,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:05,034 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:05,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:05,035 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:05,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:05,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:05,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:05,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:05,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:05,036 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 23:25:05,036 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 23:25:05,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:05,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:05,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:05,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:05,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:05,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:05,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:05,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:05,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:05,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:05,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:05,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:05,039 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 23:25:05,039 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 23:25:05,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:05,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 23:25:05,040 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2019-11-19 23:25:05,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:05,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:05,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:05,324 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:05,324 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:05,325 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-19 23:25:05,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/662789ce2/9e65058cd141416796db7f228459110e/FLAG64070d1d3 [2019-11-19 23:25:05,736 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:05,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-19 23:25:05,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/662789ce2/9e65058cd141416796db7f228459110e/FLAG64070d1d3 [2019-11-19 23:25:06,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/data/662789ce2/9e65058cd141416796db7f228459110e [2019-11-19 23:25:06,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:06,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:06,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:06,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:06,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:06,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe9406a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06, skipping insertion in model container [2019-11-19 23:25:06,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,135 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:06,152 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:06,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:06,340 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:06,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:06,412 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:06,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06 WrapperNode [2019-11-19 23:25:06,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:06,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:06,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:06,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:06,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:06,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:06,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:06,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:06,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... [2019-11-19 23:25:06,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:06,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:06,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:06,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:06,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:25:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 23:25:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 23:25:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 23:25:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 23:25:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:25:07,027 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:07,027 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-19 23:25:07,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:07 BoogieIcfgContainer [2019-11-19 23:25:07,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:07,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:07,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:07,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:07,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:06" (1/3) ... [2019-11-19 23:25:07,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef73b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:07, skipping insertion in model container [2019-11-19 23:25:07,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:06" (2/3) ... [2019-11-19 23:25:07,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef73b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:07, skipping insertion in model container [2019-11-19 23:25:07,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:07" (3/3) ... [2019-11-19 23:25:07,035 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2019-11-19 23:25:07,044 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:07,057 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:07,067 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:07,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:07,090 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:07,090 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:07,091 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:07,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:07,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:07,091 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:07,091 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 23:25:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 23:25:07,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:07,108 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:07,108 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:07,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:07,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-19 23:25:07,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:07,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174149735] [2019-11-19 23:25:07,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:25:07,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 23:25:07,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:25:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:07,221 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:25:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:07,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174149735] [2019-11-19 23:25:07,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:25:07,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 23:25:07,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62814056] [2019-11-19 23:25:07,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:25:07,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:25:07,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:25:07,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:25:07,244 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 23:25:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:25:07,257 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-19 23:25:07,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:25:07,258 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 23:25:07,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:25:07,266 INFO L225 Difference]: With dead ends: 48 [2019-11-19 23:25:07,266 INFO L226 Difference]: Without dead ends: 22 [2019-11-19 23:25:07,269 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:25:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-19 23:25:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-19 23:25:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 23:25:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-19 23:25:07,293 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-19 23:25:07,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:25:07,294 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-19 23:25:07,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:25:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-19 23:25:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 23:25:07,295 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:07,295 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:07,497 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 23:25:07,498 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:07,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:07,498 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-19 23:25:07,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:07,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272320127] [2019-11-19 23:25:07,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:25:07,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 23:25:07,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:25:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:07,647 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:25:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:07,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272320127] [2019-11-19 23:25:07,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:25:07,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 23:25:07,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627245653] [2019-11-19 23:25:07,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 23:25:07,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:25:07,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:25:07,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:25:07,742 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2019-11-19 23:25:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:25:07,877 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-11-19 23:25:07,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:25:07,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-19 23:25:07,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:25:07,882 INFO L225 Difference]: With dead ends: 34 [2019-11-19 23:25:07,883 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 23:25:07,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 23:25:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 23:25:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 23:25:07,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 23:25:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-19 23:25:07,893 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2019-11-19 23:25:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:25:07,894 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-19 23:25:07,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 23:25:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-19 23:25:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 23:25:07,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:07,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:08,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 23:25:08,110 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:08,111 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2019-11-19 23:25:08,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:08,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049745200] [2019-11-19 23:25:08,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:25:08,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:25:08,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:25:08,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:25:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:08,242 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:25:08,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:25:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:08,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049745200] [2019-11-19 23:25:08,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:25:08,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-19 23:25:08,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681705201] [2019-11-19 23:25:08,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 23:25:08,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:25:08,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 23:25:08,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-19 23:25:08,321 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-11-19 23:25:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:25:08,563 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-19 23:25:08,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:25:08,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-11-19 23:25:08,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:25:08,565 INFO L225 Difference]: With dead ends: 23 [2019-11-19 23:25:08,565 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 23:25:08,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-19 23:25:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 23:25:08,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 23:25:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 23:25:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-11-19 23:25:08,573 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2019-11-19 23:25:08,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:25:08,573 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-11-19 23:25:08,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 23:25:08,574 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-11-19 23:25:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 23:25:08,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:08,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:08,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 23:25:08,775 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:08,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:08,776 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2019-11-19 23:25:08,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:08,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232927207] [2019-11-19 23:25:08,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/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 [2019-11-19 23:25:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:25:08,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-19 23:25:08,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:25:08,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:25:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:08,994 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:25:08,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:25:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:25:09,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232927207] [2019-11-19 23:25:09,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:25:09,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-11-19 23:25:09,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076267571] [2019-11-19 23:25:09,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-19 23:25:09,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:25:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-19 23:25:09,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-19 23:25:09,453 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2019-11-19 23:25:09,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:25:09,873 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-19 23:25:09,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 23:25:09,874 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2019-11-19 23:25:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:25:09,874 INFO L225 Difference]: With dead ends: 20 [2019-11-19 23:25:09,874 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:25:09,875 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-11-19 23:25:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:25:09,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:25:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:25:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:25:09,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-19 23:25:09,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:25:09,877 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:25:09,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-19 23:25:09,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:25:09,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:25:10,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 23:25:10,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:25:10,360 INFO L440 ceAbstractionStarter]: At program point L64(lines 55 65) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) [2019-11-19 23:25:10,360 INFO L440 ceAbstractionStarter]: At program point L52(lines 12 53) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24))) [2019-11-19 23:25:10,360 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 23:25:10,360 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:25:10,360 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2019-11-19 23:25:10,361 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L440 ceAbstractionStarter]: At program point L58-2(lines 58 62) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24))) [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-19 23:25:10,362 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2019-11-19 23:25:10,363 INFO L447 ceAbstractionStarter]: At program point L84(lines 67 85) the Hoare annotation is: true [2019-11-19 23:25:10,363 INFO L444 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-19 23:25:10,363 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2019-11-19 23:25:10,363 INFO L444 ceAbstractionStarter]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2019-11-19 23:25:10,363 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2019-11-19 23:25:10,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,377 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,377 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,377 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:25:10 BoogieIcfgContainer [2019-11-19 23:25:10,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:25:10,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:25:10,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:25:10,393 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:25:10,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:07" (3/4) ... [2019-11-19 23:25:10,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:25:10,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-19 23:25:10,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-19 23:25:10,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:25:10,439 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() [2019-11-19 23:25:10,440 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() [2019-11-19 23:25:10,440 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2019-11-19 23:25:10,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d53d5462-0769-444e-acd0-50d18613f0c7/bin/uautomizer/witness.graphml [2019-11-19 23:25:10,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:25:10,471 INFO L168 Benchmark]: Toolchain (without parser) took 4353.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 960.4 MB in the beginning and 913.1 MB in the end (delta: 47.3 MB). Peak memory consumption was 193.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,472 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:10,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.36 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,473 INFO L168 Benchmark]: Boogie Preprocessor took 57.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:10,474 INFO L168 Benchmark]: RCFGBuilder took 429.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,474 INFO L168 Benchmark]: TraceAbstraction took 3363.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.7 MB in the end (delta: 185.1 MB). Peak memory consumption was 185.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,475 INFO L168 Benchmark]: Witness Printer took 76.56 ms. Allocated memory is still 1.2 GB. Free memory was 919.7 MB in the beginning and 913.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:10,477 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.36 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 429.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3363.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.7 MB in the end (delta: 185.1 MB). Peak memory consumption was 185.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.56 ms. Allocated memory is still 1.2 GB. Free memory was 919.7 MB in the beginning and 913.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 17]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 55]: Loop Invariant [2019-11-19 23:25:10,484 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,484 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 58]: Loop Invariant [2019-11-19 23:25:10,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 12]: Loop Invariant [2019-11-19 23:25:10,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-19 23:25:10,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 9350 SizeOfPredicates, 25 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 34 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...