./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0720.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_0720.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 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................... 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_0720.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 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:21:44,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:21:44,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:21:44,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:21:44,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:21:44,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:21:44,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:21:44,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:21:44,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:21:44,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:21:44,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:21:44,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:21:44,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:21:44,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:21:44,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:21:44,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:21:44,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:21:44,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:21:44,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:21:44,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:21:44,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:21:44,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:21:44,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:21:44,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:21:44,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:21:44,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:21:44,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:21:44,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:21:44,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:21:44,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:21:44,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:21:44,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:21:44,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:21:44,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:21:44,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:21:44,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:21:44,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:21:44,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:21:44,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:21:44,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:21:44,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:21:44,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:21:45,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:21:45,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:21:45,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:21:45,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:21:45,033 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:21:45,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:21:45,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:21:45,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:21:45,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:21:45,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:21:45,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:21:45,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:21:45,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:21:45,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:21:45,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:21:45,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:21:45,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:21:45,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:21:45,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:21:45,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:21:45,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:21:45,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:21:45,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:21:45,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:21:45,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:21:45,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:21:45,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:21:45,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:21:45,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:21:45,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-24 23:21:45,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:21:45,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:21:45,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:21:45,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:21:45,496 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:21:45,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 23:21:45,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9056857c2/0c348286e16e4405b666d20646ee8ba9/FLAG5392c3998 [2020-10-24 23:21:46,279 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:21:46,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 23:21:46,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9056857c2/0c348286e16e4405b666d20646ee8ba9/FLAG5392c3998 [2020-10-24 23:21:46,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9056857c2/0c348286e16e4405b666d20646ee8ba9 [2020-10-24 23:21:46,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:21:46,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:21:46,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:21:46,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:21:46,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:21:46,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b679d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46, skipping insertion in model container [2020-10-24 23:21:46,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:21:46,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:21:46,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:21:46,591 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:21:46,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:21:46,645 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:21:46,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46 WrapperNode [2020-10-24 23:21:46,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:21:46,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:21:46,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:21:46,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:21:46,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:21:46,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:21:46,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:21:46,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:21:46,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (1/1) ... [2020-10-24 23:21:46,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:21:46,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:21:46,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:21:46,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:21:46,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (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 23:21:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:21:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:21:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:21:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:21:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:21:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:21:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:21:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:21:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:21:47,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:21:47,325 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:21:47,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:47 BoogieIcfgContainer [2020-10-24 23:21:47,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:21:47,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:21:47,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:21:47,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:21:47,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:21:46" (1/3) ... [2020-10-24 23:21:47,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@889dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:21:47, skipping insertion in model container [2020-10-24 23:21:47,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:46" (2/3) ... [2020-10-24 23:21:47,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@889dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:21:47, skipping insertion in model container [2020-10-24 23:21:47,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:47" (3/3) ... [2020-10-24 23:21:47,338 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-10-24 23:21:47,351 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:21:47,357 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:21:47,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:21:47,401 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:21:47,401 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:21:47,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:21:47,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:21:47,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:21:47,402 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:21:47,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:21:47,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:21:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-24 23:21:47,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:21:47,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:21:47,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:21:47,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:21:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:21:47,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-10-24 23:21:47,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:21:47,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8575238] [2020-10-24 23:21:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:21:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:21:47,607 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 23:21:47,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8575238] [2020-10-24 23:21:47,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:21:47,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:21:47,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444202164] [2020-10-24 23:21:47,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:21:47,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:21:47,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:21:47,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:21:47,634 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-24 23:21:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:21:47,655 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-10-24 23:21:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:21:47,657 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:21:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:21:47,668 INFO L225 Difference]: With dead ends: 65 [2020-10-24 23:21:47,669 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 23:21:47,672 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 23:21:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 23:21:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 23:21:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 23:21:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-24 23:21:47,713 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-24 23:21:47,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:21:47,714 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-24 23:21:47,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:21:47,714 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-24 23:21:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:21:47,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:21:47,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:21:47,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:21:47,715 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:21:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:21:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-10-24 23:21:47,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:21:47,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567672281] [2020-10-24 23:21:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:21:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:21:47,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:21:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:21:47,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:21:47,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:21:47,843 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:21:47,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:21:47,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:21:47 BoogieIcfgContainer [2020-10-24 23:21:47,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:21:47,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:21:47,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:21:47,893 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:21:47,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:47" (3/4) ... [2020-10-24 23:21:47,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:21:47,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:21:47,904 INFO L168 Benchmark]: Toolchain (without parser) took 1566.75 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.6 MB in the beginning and 20.1 MB in the end (delta: -518.3 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:21:47,905 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory is still 22.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:21:47,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.70 ms. Allocated memory is still 41.9 MB. Free memory was 28.2 MB in the beginning and 17.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:21:47,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.82 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 35.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:21:47,909 INFO L168 Benchmark]: Boogie Preprocessor took 36.72 ms. Allocated memory is still 50.3 MB. Free memory was 35.6 MB in the beginning and 34.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:21:47,911 INFO L168 Benchmark]: RCFGBuilder took 585.84 ms. Allocated memory is still 50.3 MB. Free memory was 34.2 MB in the beginning and 29.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:21:47,912 INFO L168 Benchmark]: TraceAbstraction took 561.23 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 20.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:21:47,914 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 50.3 MB. Free memory was 20.6 MB in the beginning and 20.4 MB in the end (delta: 243.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:21:47,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory is still 22.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.70 ms. Allocated memory is still 41.9 MB. Free memory was 28.2 MB in the beginning and 17.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.82 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 35.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.72 ms. Allocated memory is still 50.3 MB. Free memory was 35.6 MB in the beginning and 34.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 585.84 ms. Allocated memory is still 50.3 MB. Free memory was 34.2 MB in the beginning and 29.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 561.23 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 20.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.32 ms. Allocated memory is still 50.3 MB. Free memory was 20.6 MB in the beginning and 20.4 MB in the end (delta: 243.8 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L97] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 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: 43 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 23:21:50,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:21:50,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:21:50,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:21:50,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:21:50,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:21:50,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:21:50,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:21:50,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:21:50,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:21:50,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:21:50,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:21:50,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:21:50,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:21:50,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:21:50,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:21:50,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:21:50,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:21:50,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:21:50,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:21:50,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:21:50,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:21:50,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:21:50,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:21:50,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:21:50,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:21:50,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:21:50,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:21:50,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:21:50,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:21:50,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:21:50,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:21:50,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:21:50,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:21:50,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:21:50,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:21:50,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:21:50,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:21:50,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:21:50,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:21:50,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:21:50,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:21:50,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:21:50,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:21:50,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:21:50,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:21:50,830 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:21:50,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:21:50,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:21:50,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:21:50,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:21:50,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:21:50,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:21:50,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:21:50,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:21:50,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:21:50,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:21:50,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:21:50,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:21:50,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:21:50,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:21:50,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:21:50,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:21:50,835 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:21:50,836 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:21:50,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:21:50,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:21:50,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:21:50,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-24 23:21:51,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:21:51,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:21:51,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:21:51,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:21:51,307 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:21:51,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 23:21:51,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803d1766/c6f3d7315cd141edb8154d6b3b5a1932/FLAG4b8c8c817 [2020-10-24 23:21:52,014 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:21:52,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-24 23:21:52,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803d1766/c6f3d7315cd141edb8154d6b3b5a1932/FLAG4b8c8c817 [2020-10-24 23:21:52,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803d1766/c6f3d7315cd141edb8154d6b3b5a1932 [2020-10-24 23:21:52,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:21:52,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:21:52,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:21:52,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:21:52,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:21:52,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c817a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52, skipping insertion in model container [2020-10-24 23:21:52,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:21:52,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:21:52,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:21:52,626 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:21:52,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:21:52,682 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:21:52,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52 WrapperNode [2020-10-24 23:21:52,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:21:52,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:21:52,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:21:52,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:21:52,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:21:52,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:21:52,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:21:52,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:21:52,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (1/1) ... [2020-10-24 23:21:52,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:21:52,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:21:52,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:21:52,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:21:52,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (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 23:21:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:21:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:21:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:21:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:21:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:21:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:21:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:21:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:21:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:21:54,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:21:54,174 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:21:54,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:54 BoogieIcfgContainer [2020-10-24 23:21:54,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:21:54,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:21:54,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:21:54,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:21:54,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:21:52" (1/3) ... [2020-10-24 23:21:54,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a331f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:21:54, skipping insertion in model container [2020-10-24 23:21:54,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:21:52" (2/3) ... [2020-10-24 23:21:54,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a331f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:21:54, skipping insertion in model container [2020-10-24 23:21:54,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:54" (3/3) ... [2020-10-24 23:21:54,187 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-10-24 23:21:54,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:21:54,207 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:21:54,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:21:54,254 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:21:54,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:21:54,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:21:54,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:21:54,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:21:54,255 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:21:54,255 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:21:54,255 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:21:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-24 23:21:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:21:54,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:21:54,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:21:54,277 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:21:54,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:21:54,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-10-24 23:21:54,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:21:54,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000090016] [2020-10-24 23:21:54,300 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 23:21:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:21:54,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:21:54,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:21:54,598 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 23:21:54,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:21:54,606 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 23:21:54,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000090016] [2020-10-24 23:21:54,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:21:54,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:21:54,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297237684] [2020-10-24 23:21:54,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:21:54,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:21:54,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:21:54,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:21:54,649 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-24 23:21:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:21:54,694 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-10-24 23:21:54,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:21:54,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:21:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:21:54,717 INFO L225 Difference]: With dead ends: 65 [2020-10-24 23:21:54,717 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 23:21:54,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 23:21:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 23:21:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 23:21:54,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 23:21:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-24 23:21:54,776 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-24 23:21:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:21:54,777 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-24 23:21:54,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:21:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-24 23:21:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:21:54,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:21:54,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:21:54,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:21:54,995 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:21:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:21:55,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-10-24 23:21:55,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:21:55,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889482877] [2020-10-24 23:21:55,005 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 23:21:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:21:55,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 23:21:55,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:21:55,332 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 23:21:55,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:00,041 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-24 23:22:00,062 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 23:22:00,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889482877] [2020-10-24 23:22:00,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:00,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-24 23:22:00,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069800614] [2020-10-24 23:22:00,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:22:00,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:00,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:22:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:22:00,069 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-10-24 23:22:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:01,358 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-10-24 23:22:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:22:01,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-10-24 23:22:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:01,361 INFO L225 Difference]: With dead ends: 35 [2020-10-24 23:22:01,361 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 23:22:01,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-24 23:22:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 23:22:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 23:22:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 23:22:01,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-24 23:22:01,368 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-10-24 23:22:01,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:01,368 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-24 23:22:01,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:22:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-24 23:22:01,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-24 23:22:01,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:01,370 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, 1, 1] [2020-10-24 23:22:01,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:22:01,571 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:01,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:01,573 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-10-24 23:22:01,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:22:01,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489246251] [2020-10-24 23:22:01,574 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 23:22:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:01,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:22:01,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:22:01,806 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 23:22:01,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:01,937 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 23:22:01,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489246251] [2020-10-24 23:22:01,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:01,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:22:01,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401848080] [2020-10-24 23:22:01,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:22:01,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:01,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:22:01,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:22:01,941 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2020-10-24 23:22:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:02,099 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-10-24 23:22:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:22:02,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-24 23:22:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:02,100 INFO L225 Difference]: With dead ends: 30 [2020-10-24 23:22:02,100 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:22:02,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:22:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:22:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:22:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:22:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:22:02,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-24 23:22:02,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:02,102 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:22:02,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:22:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:22:02,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:22:02,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:22:02,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:22:02,441 INFO L277 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-10-24 23:22:02,441 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-24 23:22:02,441 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:22:02,441 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:22:02,441 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:22:02,442 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:22:02,442 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-10-24 23:22:02,442 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-10-24 23:22:02,442 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-10-24 23:22:02,442 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-10-24 23:22:02,442 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-10-24 23:22:02,443 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-10-24 23:22:02,443 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-10-24 23:22:02,443 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-10-24 23:22:02,443 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-10-24 23:22:02,444 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-10-24 23:22:02,444 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:22:02,445 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-10-24 23:22:02,446 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-10-24 23:22:02,446 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-10-24 23:22:02,446 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-10-24 23:22:02,446 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-10-24 23:22:02,446 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-10-24 23:22:02,446 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-10-24 23:22:02,446 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-10-24 23:22:02,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:22:02,447 INFO L270 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-10-24 23:22:02,447 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-10-24 23:22:02,447 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-10-24 23:22:02,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:22:02 BoogieIcfgContainer [2020-10-24 23:22:02,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:22:02,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:22:02,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:22:02,494 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:22:02,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:21:54" (3/4) ... [2020-10-24 23:22:02,499 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:22:02,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-24 23:22:02,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 23:22:02,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:22:02,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:22:02,560 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-10-24 23:22:02,562 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-10-24 23:22:02,626 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:22:02,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:22:02,632 INFO L168 Benchmark]: Toolchain (without parser) took 10311.45 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 18.1 MB in the beginning and 28.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,635 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 27.0 MB in the beginning and 27.0 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:02,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.88 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 23.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.14 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 33.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,638 INFO L168 Benchmark]: Boogie Preprocessor took 54.16 ms. Allocated memory is still 50.3 MB. Free memory was 33.4 MB in the beginning and 31.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,640 INFO L168 Benchmark]: RCFGBuilder took 1378.71 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 23.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,641 INFO L168 Benchmark]: TraceAbstraction took 8313.70 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 31.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,642 INFO L168 Benchmark]: Witness Printer took 136.94 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 28.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:02,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 27.0 MB in the beginning and 27.0 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.88 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 23.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.14 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 33.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.16 ms. Allocated memory is still 50.3 MB. Free memory was 33.4 MB in the beginning and 31.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1378.71 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 23.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8313.70 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 31.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 136.94 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 28.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 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 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 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 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 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 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 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 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 15]: Loop Invariant [2020-10-24 23:22:02,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,674 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-10-24 23:22:02,684 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,686 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,686 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-10-24 23:22:02,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:22:02,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:22:02,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 129 SDs, 0 SdLazy, 52 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 5 QuantifiedInterpolants, 4376 SizeOfPredicates, 17 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...