./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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 [2020-10-24 23:25:53,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:53,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:53,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:53,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:53,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:53,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:53,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:53,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:53,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:53,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:53,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:53,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:53,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:53,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:53,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:53,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:53,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:53,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:53,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:53,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:53,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:53,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:53,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:53,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:53,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:53,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:53,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:53,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:53,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:53,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:53,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:53,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:53,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:53,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:53,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:53,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:53,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:53,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:53,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:53,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:53,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:25:53,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:53,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:53,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:53,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:53,949 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:53,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:53,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:53,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:25:53,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:53,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:53,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:53,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:53,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:53,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:53,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:53,953 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:53,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:53,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:53,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:53,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:53,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:53,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:53,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:53,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:53,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:53,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:25:53,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:25:53,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:53,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:53,957 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-10-24 23:25:54,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:54,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:54,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:54,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:54,402 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:54,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-10-24 23:25:54,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffcf058f/c50ca6b96bcf47608056c8dc68c6d474/FLAG8429e6c46 [2020-10-24 23:25:55,061 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:55,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-10-24 23:25:55,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffcf058f/c50ca6b96bcf47608056c8dc68c6d474/FLAG8429e6c46 [2020-10-24 23:25:55,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffcf058f/c50ca6b96bcf47608056c8dc68c6d474 [2020-10-24 23:25:55,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:55,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:55,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:55,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:55,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:55,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47338005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55, skipping insertion in model container [2020-10-24 23:25:55,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:55,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:55,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:55,711 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:55,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:55,762 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:55,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55 WrapperNode [2020-10-24 23:25:55,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:55,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:55,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:55,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:55,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:55,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:55,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:55,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:55,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... [2020-10-24 23:25:55,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:55,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:55,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:55,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:55,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:25:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:25:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:25:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:25:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:25:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:56,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:56,506 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:25:56,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:56 BoogieIcfgContainer [2020-10-24 23:25:56,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:56,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:56,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:56,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:55" (1/3) ... [2020-10-24 23:25:56,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09e413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:56, skipping insertion in model container [2020-10-24 23:25:56,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:55" (2/3) ... [2020-10-24 23:25:56,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09e413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:56, skipping insertion in model container [2020-10-24 23:25:56,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:56" (3/3) ... [2020-10-24 23:25:56,519 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-10-24 23:25:56,531 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:56,538 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:56,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:56,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:56,597 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:56,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:56,598 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:56,598 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:56,598 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:56,598 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:56,599 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-24 23:25:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:56,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:56,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:56,629 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:56,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:56,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-24 23:25:56,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:56,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136004750] [2020-10-24 23:25:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:56,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136004750] [2020-10-24 23:25:56,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:56,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:25:56,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417997272] [2020-10-24 23:25:56,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:56,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:25:56,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:56,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:56,838 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-24 23:25:56,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:56,855 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-24 23:25:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:56,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:25:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:56,867 INFO L225 Difference]: With dead ends: 59 [2020-10-24 23:25:56,868 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:25:56,871 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 [2020-10-24 23:25:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:25:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:25:56,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:25:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-24 23:25:56,909 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-24 23:25:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:56,909 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-24 23:25:56,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:56,910 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-24 23:25:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:56,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:56,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:56,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:25:56,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:56,912 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-24 23:25:56,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:56,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474448180] [2020-10-24 23:25:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:56,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:57,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:57,057 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:25:57,057 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:25:57,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:25:57,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:57 BoogieIcfgContainer [2020-10-24 23:25:57,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:57,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:57,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:57,092 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:57,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:56" (3/4) ... [2020-10-24 23:25:57,096 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:25:57,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:57,099 INFO L168 Benchmark]: Toolchain (without parser) took 1663.47 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.1 MB in the beginning and 25.9 MB in the end (delta: -790.4 kB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:57,100 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:57,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.12 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 25.2 MB in the end (delta: -814.2 kB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:57,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.79 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:57,103 INFO L168 Benchmark]: Boogie Preprocessor took 32.51 ms. Allocated memory is still 48.2 MB. Free memory was 23.5 MB in the beginning and 22.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:57,104 INFO L168 Benchmark]: RCFGBuilder took 665.67 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 27.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:57,105 INFO L168 Benchmark]: TraceAbstraction took 579.92 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 26.2 MB in the end (delta: 527.6 kB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:57,106 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 58.7 MB. Free memory was 26.2 MB in the beginning and 25.9 MB in the end (delta: 292.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:57,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.12 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 25.2 MB in the end (delta: -814.2 kB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.79 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.51 ms. Allocated memory is still 48.2 MB. Free memory was 23.5 MB in the beginning and 22.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 665.67 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 27.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 579.92 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 26.2 MB in the end (delta: 527.6 kB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 58.7 MB. Free memory was 26.2 MB in the beginning and 25.9 MB in the end (delta: 292.5 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: 0.4s, 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 [2020-10-24 23:25:59,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:59,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:59,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:59,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:59,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:59,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:59,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:59,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:59,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:59,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:59,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:59,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:59,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:59,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:59,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:59,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:59,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:59,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:59,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:59,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:59,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:59,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:59,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:59,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:59,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:59,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:59,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:59,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:59,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:59,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:59,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:59,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:59,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:59,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:59,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:59,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:59,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:59,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:59,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:59,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:59,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:25:59,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:59,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:59,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:59,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:59,711 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:59,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:59,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:59,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:59,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:59,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:59,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:59,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:59,713 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:25:59,713 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:25:59,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:59,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:59,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:59,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:59,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:59,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:59,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:59,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:59,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:59,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:59,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:59,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:59,716 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:25:59,716 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:25:59,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:59,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:59,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:25:59,717 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-10-24 23:26:00,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:26:00,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:26:00,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:26:00,134 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:26:00,135 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:26:00,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-10-24 23:26:00,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0ead4a4/de05e01dd9884f849d5a3504debec03a/FLAG9718f4411 [2020-10-24 23:26:00,878 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:26:00,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2020-10-24 23:26:00,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0ead4a4/de05e01dd9884f849d5a3504debec03a/FLAG9718f4411 [2020-10-24 23:26:01,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0ead4a4/de05e01dd9884f849d5a3504debec03a [2020-10-24 23:26:01,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:26:01,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:26:01,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:01,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:26:01,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:26:01,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2b713b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01, skipping insertion in model container [2020-10-24 23:26:01,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:26:01,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:26:01,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:01,555 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:26:01,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:01,604 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:26:01,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01 WrapperNode [2020-10-24 23:26:01,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:01,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:01,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:26:01,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:26:01,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:01,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:26:01,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:26:01,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:26:01,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... [2020-10-24 23:26:01,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:26:01,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:26:01,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:26:01,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:26:01,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:26:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:26:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:26:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:26:02,584 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:26:02,584 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:26:02,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:02 BoogieIcfgContainer [2020-10-24 23:26:02,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:26:02,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:26:02,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:26:02,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:26:02,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:26:01" (1/3) ... [2020-10-24 23:26:02,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463f612f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:02, skipping insertion in model container [2020-10-24 23:26:02,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:01" (2/3) ... [2020-10-24 23:26:02,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463f612f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:02, skipping insertion in model container [2020-10-24 23:26:02,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:02" (3/3) ... [2020-10-24 23:26:02,595 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-10-24 23:26:02,608 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:26:02,614 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:26:02,629 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:26:02,655 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:26:02,656 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:26:02,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:26:02,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:26:02,656 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:26:02,656 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:26:02,656 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:26:02,657 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:26:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-24 23:26:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:26:02,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:02,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:02,679 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:02,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-24 23:26:02,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:02,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164250701] [2020-10-24 23:26:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:02,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:26:02,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:02,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:02,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164250701] [2020-10-24 23:26:02,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:02,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:26:02,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456121705] [2020-10-24 23:26:02,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:26:02,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:02,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:26:02,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:02,911 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-24 23:26:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:02,929 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-24 23:26:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:26:02,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:26:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:02,942 INFO L225 Difference]: With dead ends: 59 [2020-10-24 23:26:02,942 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:26:02,945 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 [2020-10-24 23:26:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:26:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:26:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:26:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-24 23:26:02,982 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-24 23:26:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:02,982 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-24 23:26:02,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:26:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-24 23:26:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:26:02,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:02,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:03,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:26:03,200 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-24 23:26:03,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:03,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129962822] [2020-10-24 23:26:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:03,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 23:26:03,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:03,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:03,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129962822] [2020-10-24 23:26:03,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:03,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:26:03,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714744249] [2020-10-24 23:26:03,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:26:03,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:03,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:26:03,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:26:03,516 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-10-24 23:26:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:03,696 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-10-24 23:26:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:26:03,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 23:26:03,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:03,698 INFO L225 Difference]: With dead ends: 39 [2020-10-24 23:26:03,698 INFO L226 Difference]: Without dead ends: 21 [2020-10-24 23:26:03,699 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 [2020-10-24 23:26:03,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-24 23:26:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-24 23:26:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-24 23:26:03,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-24 23:26:03,706 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-10-24 23:26:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:03,706 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-24 23:26:03,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:26:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-24 23:26:03,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:26:03,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:03,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:03,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:26:03,924 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:03,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:03,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-10-24 23:26:03,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:03,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447396945] [2020-10-24 23:26:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:04,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 23:26:04,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:04,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:04,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447396945] [2020-10-24 23:26:04,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:04,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 23:26:04,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723181944] [2020-10-24 23:26:04,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:26:04,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:04,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:26:04,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:26:04,478 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-10-24 23:26:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:04,725 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-24 23:26:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:26:04,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-24 23:26:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:04,732 INFO L225 Difference]: With dead ends: 33 [2020-10-24 23:26:04,732 INFO L226 Difference]: Without dead ends: 21 [2020-10-24 23:26:04,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:26:04,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-24 23:26:04,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-24 23:26:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-24 23:26:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-10-24 23:26:04,738 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-10-24 23:26:04,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:04,739 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-10-24 23:26:04,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:26:04,739 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-10-24 23:26:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:26:04,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:04,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:04,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:26:04,954 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:04,956 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-10-24 23:26:04,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:04,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592990645] [2020-10-24 23:26:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:05,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 23:26:05,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:05,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:05,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592990645] [2020-10-24 23:26:05,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:05,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 23:26:05,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601447969] [2020-10-24 23:26:05,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 23:26:05,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:05,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 23:26:05,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:26:05,185 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-10-24 23:26:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:05,367 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-10-24 23:26:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:26:05,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-24 23:26:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:05,372 INFO L225 Difference]: With dead ends: 24 [2020-10-24 23:26:05,373 INFO L226 Difference]: Without dead ends: 21 [2020-10-24 23:26:05,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:26:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-24 23:26:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-24 23:26:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-24 23:26:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-10-24 23:26:05,380 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-10-24 23:26:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:05,380 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-10-24 23:26:05,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 23:26:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-10-24 23:26:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-24 23:26:05,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:05,381 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] [2020-10-24 23:26:05,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:26:05,590 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:05,592 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-10-24 23:26:05,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:05,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220666661] [2020-10-24 23:26:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:26:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:05,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-24 23:26:05,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:05,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:26:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:05,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:06,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220666661] [2020-10-24 23:26:06,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:06,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-10-24 23:26:06,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923878468] [2020-10-24 23:26:06,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 23:26:06,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:06,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 23:26:06,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:26:06,158 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-10-24 23:26:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:06,585 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-10-24 23:26:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 23:26:06,586 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-10-24 23:26:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:06,587 INFO L225 Difference]: With dead ends: 21 [2020-10-24 23:26:06,587 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:26:06,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-24 23:26:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:26:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:26:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:26:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:26:06,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-24 23:26:06,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:06,589 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:26:06,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 23:26:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:26:06,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:26:06,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 23:26:06,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:26:07,038 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-24 23:26:07,245 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-10-24 23:26:07,250 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-10-24 23:26:07,251 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))) [2020-10-24 23:26:07,251 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-10-24 23:26:07,251 INFO L277 CegarLoopResult]: At program point L86(lines 70 87) the Hoare annotation is: true [2020-10-24 23:26:07,251 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-10-24 23:26:07,251 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-10-24 23:26:07,251 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-24 23:26:07,252 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))) [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:26:07,252 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-10-24 23:26:07,253 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:26:07,253 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-10-24 23:26:07,253 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:26:07,258 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))) [2020-10-24 23:26:07,260 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-10-24 23:26:07,260 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:26:07,260 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)) [2020-10-24 23:26:07,260 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:26:07,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,279 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,293 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,323 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:26:07 BoogieIcfgContainer [2020-10-24 23:26:07,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:26:07,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:26:07,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:26:07,331 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:26:07,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:02" (3/4) ... [2020-10-24 23:26:07,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:26:07,351 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:26:07,351 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:26:07,352 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:07,352 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:07,386 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 [2020-10-24 23:26:07,388 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 [2020-10-24 23:26:07,389 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 [2020-10-24 23:26:07,451 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:26:07,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:26:07,458 INFO L168 Benchmark]: Toolchain (without parser) took 6238.32 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.3 MB in the beginning and 42.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,459 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:07,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.12 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 37.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 36.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:07,461 INFO L168 Benchmark]: Boogie Preprocessor took 41.41 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,464 INFO L168 Benchmark]: RCFGBuilder took 891.80 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 30.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,465 INFO L168 Benchmark]: TraceAbstraction took 4741.81 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 45.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,466 INFO L168 Benchmark]: Witness Printer took 125.11 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:07,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.12 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 37.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 36.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.41 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 891.80 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 30.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4741.81 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 45.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 125.11 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.0 MB in the end (delta: 3.3 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 [2020-10-24 23:26:07,498 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,502 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 [2020-10-24 23:26:07,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,511 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 [2020-10-24 23:26:07,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,521 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 [2020-10-24 23:26:07,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,523 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:07,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:07,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:07,528 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s 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, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s 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...