./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce759125498379becdf6ed11008c618e3f1de4d5 ................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce759125498379becdf6ed11008c618e3f1de4d5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:53,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:53,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:53,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:53,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:53,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:53,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:53,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:53,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:53,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:53,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:53,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:53,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:53,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:53,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:53,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:53,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:53,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:53,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:53,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:53,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:53,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:53,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:53,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:53,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:53,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:53,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:53,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:53,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:53,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:53,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:53,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:53,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:53,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:53,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:53,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:53,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:53,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:53,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:53,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:53,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:53,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:20:53,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:53,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:53,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:53,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:53,944 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:53,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:53,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:53,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:53,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:53,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:53,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:20:53,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:53,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:20:53,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:53,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:53,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:53,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:20:53,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:53,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:53,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:53,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:53,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:53,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:53,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:53,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:20:53,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:53,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:53,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:20:53,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:53,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-11-28 03:20:54,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:54,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:54,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:54,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:54,399 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:54,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-11-28 03:20:54,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/7616e7809/d4900ade52c9496d93bb7e82fa0177bc/FLAGafbbaecb8 [2020-11-28 03:20:55,194 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:55,200 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-11-28 03:20:55,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/7616e7809/d4900ade52c9496d93bb7e82fa0177bc/FLAGafbbaecb8 [2020-11-28 03:20:55,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/7616e7809/d4900ade52c9496d93bb7e82fa0177bc [2020-11-28 03:20:55,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:55,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:55,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:55,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:55,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:55,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5556203b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55, skipping insertion in model container [2020-11-28 03:20:55,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:55,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:55,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:55,845 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:55,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:55,897 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:55,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55 WrapperNode [2020-11-28 03:20:55,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:55,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:55,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:55,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:55,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:55,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:55,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:55,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:55,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... [2020-11-28 03:20:55,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:55,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:55,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:55,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:56,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:20:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:20:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 03:20:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:20:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:56,678 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:56,679 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:20:56,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56 BoogieIcfgContainer [2020-11-28 03:20:56,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:56,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:56,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:56,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:56,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:55" (1/3) ... [2020-11-28 03:20:56,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44351b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:55" (2/3) ... [2020-11-28 03:20:56,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44351b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/3) ... [2020-11-28 03:20:56,693 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-11-28 03:20:56,708 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:56,716 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:20:56,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:20:56,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:56,783 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:20:56,784 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:56,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:56,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:56,784 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:56,784 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:56,785 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:56,803 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-28 03:20:56,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:20:56,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:56,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,824 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-28 03:20:56,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000677132] [2020-11-28 03:20:56,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:57,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000677132] [2020-11-28 03:20:57,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:57,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585583368] [2020-11-28 03:20:57,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:20:57,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:20:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:57,144 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-28 03:20:57,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,173 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-28 03:20:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:20:57,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:20:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,197 INFO L225 Difference]: With dead ends: 59 [2020-11-28 03:20:57,206 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 03:20:57,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 03:20:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-28 03:20:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:20:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-28 03:20:57,263 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-28 03:20:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,264 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-28 03:20:57,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:20:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-28 03:20:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:20:57,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:57,267 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-28 03:20:57,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818180034] [2020-11-28 03:20:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:57,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:57,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:57,519 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:57,520 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:57,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:57,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:57 BoogieIcfgContainer [2020-11-28 03:20:57,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:57,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:57,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:57,560 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:57,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/4) ... [2020-11-28 03:20:57,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:20:57,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:57,568 INFO L168 Benchmark]: Toolchain (without parser) took 2047.16 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 73.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,569 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 48.1 MB in the beginning and 48.0 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:57,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.67 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 66.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.55 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 65.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,572 INFO L168 Benchmark]: Boogie Preprocessor took 36.89 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,573 INFO L168 Benchmark]: RCFGBuilder took 694.54 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 45.2 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,574 INFO L168 Benchmark]: TraceAbstraction took 875.30 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 44.9 MB in the beginning and 73.9 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:57,575 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 73.4 MB in the end (delta: 530.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:57,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 48.1 MB in the beginning and 48.0 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.67 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 66.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.55 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 65.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.89 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 694.54 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 45.2 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.30 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 44.9 MB in the beginning and 73.9 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.90 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 73.4 MB in the end (delta: 530.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1052d.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:00,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:00,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:00,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:00,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:00,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:00,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:00,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:00,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:00,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:00,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:00,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:00,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:00,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:00,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:00,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:00,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:00,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:00,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:00,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:00,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:00,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:00,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:00,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:00,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:00,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:00,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:00,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:00,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:00,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:00,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:00,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:00,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:00,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:00,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:00,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:00,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:00,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:00,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:00,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:00,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:00,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:21:00,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:00,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:00,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:00,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:00,853 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:00,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:00,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:21:00,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:21:00,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:00,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:00,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:00,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:00,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:21:00,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:21:00,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:21:00,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:00,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:00,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:00,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:00,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:00,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:00,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:00,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:00,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:00,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:00,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:00,861 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:21:00,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:21:00,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:00,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:00,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:21:00,862 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-11-28 03:21:01,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:01,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:01,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:01,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:01,383 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:01,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-11-28 03:21:01,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/23f4a3f82/2845f38feb3e4af9baa554ea1e9ccd33/FLAGad707e0ab [2020-11-28 03:21:02,076 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:02,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-11-28 03:21:02,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/23f4a3f82/2845f38feb3e4af9baa554ea1e9ccd33/FLAGad707e0ab [2020-11-28 03:21:02,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/data/23f4a3f82/2845f38feb3e4af9baa554ea1e9ccd33 [2020-11-28 03:21:02,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:02,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:02,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:02,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:02,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:02,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d6eac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02, skipping insertion in model container [2020-11-28 03:21:02,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:02,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:02,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:02,645 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:02,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:02,701 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:02,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02 WrapperNode [2020-11-28 03:21:02,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:02,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:02,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:02,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:02,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:02,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:02,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:02,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:02,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:02,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:02,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:02,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:02,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:21:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:21:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:21:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 03:21:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:21:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:02,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 03:21:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:21:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:21:04,046 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:04,046 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:21:04,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04 BoogieIcfgContainer [2020-11-28 03:21:04,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:04,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:04,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:04,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:04,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:02" (1/3) ... [2020-11-28 03:21:04,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fdb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:04, skipping insertion in model container [2020-11-28 03:21:04,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (2/3) ... [2020-11-28 03:21:04,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fdb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:04, skipping insertion in model container [2020-11-28 03:21:04,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04" (3/3) ... [2020-11-28 03:21:04,058 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-11-28 03:21:04,070 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:04,074 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:21:04,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:21:04,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:04,122 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:04,122 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:04,122 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:04,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:04,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:04,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:04,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-28 03:21:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:21:04,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:04,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:04,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:04,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:04,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-28 03:21:04,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:21:04,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423978539] [2020-11-28 03:21:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:21:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:04,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:21:04,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:04,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:21:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:04,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423978539] [2020-11-28 03:21:04,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:04,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:21:04,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288924969] [2020-11-28 03:21:04,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:21:04,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:21:04,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:04,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:04,342 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-28 03:21:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:04,362 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-28 03:21:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:04,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:21:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:04,375 INFO L225 Difference]: With dead ends: 59 [2020-11-28 03:21:04,375 INFO L226 Difference]: Without dead ends: 27 [2020-11-28 03:21:04,378 INFO L677 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 [2020-11-28 03:21:04,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-28 03:21:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-28 03:21:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:21:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-28 03:21:04,419 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-28 03:21:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:04,419 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-28 03:21:04,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:21:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-28 03:21:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:21:04,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:04,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:04,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:21:04,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:04,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:04,646 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-28 03:21:04,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:21:04,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630196188] [2020-11-28 03:21:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:21:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:04,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:21:04,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:04,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:21:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:05,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630196188] [2020-11-28 03:21:05,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 03:21:05,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347075971] [2020-11-28 03:21:05,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:21:05,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:21:05,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:21:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:21:05,041 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-28 03:21:05,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,283 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-28 03:21:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:05,286 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 03:21:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,287 INFO L225 Difference]: With dead ends: 39 [2020-11-28 03:21:05,287 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:21:05,288 INFO L677 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 [2020-11-28 03:21:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:21:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 03:21:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:21:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 03:21:05,299 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-28 03:21:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:05,299 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:21:05,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:21:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 03:21:05,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:21:05,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:05,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:05,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:21:05,515 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:05,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-28 03:21:05,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:21:05,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759210372] [2020-11-28 03:21:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:21:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:05,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:05,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:21:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:06,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759210372] [2020-11-28 03:21:06,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:06,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 03:21:06,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705740302] [2020-11-28 03:21:06,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:21:06,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:21:06,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:21:06,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:06,264 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-28 03:21:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:06,637 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-28 03:21:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:21:06,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 03:21:06,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:06,643 INFO L225 Difference]: With dead ends: 33 [2020-11-28 03:21:06,643 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:21:06,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:21:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 03:21:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:21:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-28 03:21:06,649 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-28 03:21:06,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:06,649 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-28 03:21:06,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:21:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-28 03:21:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:21:06,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:06,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:06,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:21:06,851 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-28 03:21:06,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:21:06,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90962199] [2020-11-28 03:21:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/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 [2020-11-28 03:21:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:07,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:07,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:07,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:21:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:07,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90962199] [2020-11-28 03:21:07,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:07,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-28 03:21:07,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355960994] [2020-11-28 03:21:07,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:21:07,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:21:07,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:21:07,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:07,207 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-28 03:21:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:07,499 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-28 03:21:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:07,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-28 03:21:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:07,500 INFO L225 Difference]: With dead ends: 24 [2020-11-28 03:21:07,501 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:21:07,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:21:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:21:07,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 03:21:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:21:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-28 03:21:07,506 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-28 03:21:07,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:07,506 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-28 03:21:07,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:21:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-28 03:21:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:21:07,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:07,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:07,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:21:07,708 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:07,709 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-28 03:21:07,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:21:07,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127488292] [2020-11-28 03:21:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 03:21:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:07,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 03:21:07,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:07,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:21:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:08,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:21:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:08,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127488292] [2020-11-28 03:21:08,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:08,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-28 03:21:08,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374742080] [2020-11-28 03:21:08,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-28 03:21:08,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:21:08,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 03:21:08,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:21:08,393 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-28 03:21:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:08,910 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-28 03:21:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:21:08,911 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-28 03:21:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:08,912 INFO L225 Difference]: With dead ends: 21 [2020-11-28 03:21:08,912 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:08,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:21:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:08,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-28 03:21:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:08,914 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:08,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-28 03:21:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:08,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:09,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:21:09,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:09,391 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-11-28 03:21:09,647 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-11-28 03:21:09,650 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-28 03:21:09,650 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 03:21:09,650 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:21:09,651 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:21:09,651 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:09,651 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:09,651 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-28 03:21:09,651 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-28 03:21:09,652 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= .cse0 ULTIMATE.start___signbit_float_~x) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-28 03:21:09,652 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-28 03:21:09,652 INFO L277 CegarLoopResult]: At program point L86(lines 70 87) the Hoare annotation is: true [2020-11-28 03:21:09,652 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-28 03:21:09,652 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-28 03:21:09,652 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-28 03:21:09,653 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-28 03:21:09,653 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-28 03:21:09,653 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-28 03:21:09,653 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-28 03:21:09,653 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-28 03:21:09,654 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-28 03:21:09,655 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-28 03:21:09,655 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-28 03:21:09,655 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-28 03:21:09,655 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_floor_float_~x)) [2020-11-28 03:21:09,656 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-28 03:21:09,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,681 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,730 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:09 BoogieIcfgContainer [2020-11-28 03:21:09,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:09,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:09,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:09,740 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:09,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04" (3/4) ... [2020-11-28 03:21:09,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:09,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 03:21:09,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:21:09,764 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:09,764 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:09,800 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-28 03:21:09,803 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-28 03:21:09,803 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-28 03:21:09,851 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_18cb3572-bf9e-46be-882b-6ab8309cfdaf/bin/uautomizer/witness.graphml [2020-11-28 03:21:09,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:09,853 INFO L168 Benchmark]: Toolchain (without parser) took 7460.42 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 33.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,854 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 69.2 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:09,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.32 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 41.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.82 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 53.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,856 INFO L168 Benchmark]: Boogie Preprocessor took 44.80 ms. Allocated memory is still 69.2 MB. Free memory was 53.3 MB in the beginning and 51.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:09,857 INFO L168 Benchmark]: RCFGBuilder took 1204.46 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 32.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,859 INFO L168 Benchmark]: TraceAbstraction took 5688.35 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 32.2 MB in the beginning and 36.5 MB in the end (delta: -4.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,862 INFO L168 Benchmark]: Witness Printer took 111.95 ms. Allocated memory is still 88.1 MB. Free memory was 36.5 MB in the beginning and 33.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:09,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 69.2 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.32 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 41.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.82 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 53.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.80 ms. Allocated memory is still 69.2 MB. Free memory was 53.3 MB in the beginning and 51.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1204.46 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 32.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5688.35 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 32.2 MB in the beginning and 36.5 MB in the end (delta: -4.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * Witness Printer took 111.95 ms. Allocated memory is still 88.1 MB. Free memory was 36.5 MB in the beginning and 33.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-11-28 03:21:09,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 61]: Loop Invariant [2020-11-28 03:21:09,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,900 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,900 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,901 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,901 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant [2020-11-28 03:21:09,906 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,912 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,915 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 58]: Loop Invariant [2020-11-28 03:21:09,915 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,918 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:21:09,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-28 03:21:09,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:21:09,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 197 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8156 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...