./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 54858612 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 0.2.0-5485861 [2020-10-25 21:57:24,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:57:24,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:57:24,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:57:24,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:57:24,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:57:24,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:57:24,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:57:24,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:57:24,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:57:24,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:57:24,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:57:24,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:57:24,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:57:24,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:57:24,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:57:24,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:57:24,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:57:24,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:57:24,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:57:24,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:57:24,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:57:24,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:57:24,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:57:24,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:57:24,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:57:24,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:57:24,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:57:24,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:57:24,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:57:24,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:57:24,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:57:24,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:57:24,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:57:24,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:57:24,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:57:24,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:57:24,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:57:24,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:57:24,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:57:24,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:57:24,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:57:24,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:57:24,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:57:24,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:57:24,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:57:24,932 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:57:24,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:57:24,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:57:24,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:57:24,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:57:24,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:57:24,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:57:24,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:57:24,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:57:24,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:57:24,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:57:24,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:57:24,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:57:24,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:57:24,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:57:24,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:57:24,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:57:24,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:57:24,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:57:24,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:57:24,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:57:24,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:57:24,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:57:24,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:57:24,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:57:24,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-25 21:57:25,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:57:25,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:57:25,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:57:25,378 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:57:25,380 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:57:25,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-25 21:57:25,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac831302/e7e7c6a929f44ad48a998a55eec87288/FLAGd07f1038e [2020-10-25 21:57:26,276 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:57:26,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-25 21:57:26,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac831302/e7e7c6a929f44ad48a998a55eec87288/FLAGd07f1038e [2020-10-25 21:57:26,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac831302/e7e7c6a929f44ad48a998a55eec87288 [2020-10-25 21:57:26,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:57:26,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:57:26,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:57:26,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:57:26,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:57:26,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:26,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe59a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26, skipping insertion in model container [2020-10-25 21:57:26,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:26,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:57:26,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:57:26,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:57:26,864 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:57:26,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:57:26,930 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:57:26,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26 WrapperNode [2020-10-25 21:57:26,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:57:26,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:57:26,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:57:26,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:57:26,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:26,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:57:27,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:57:27,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:57:27,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:57:27,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (1/1) ... [2020-10-25 21:57:27,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:57:27,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:57:27,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:57:27,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:57:27,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (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 [2020-10-25 21:57:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:57:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:57:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:57:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:57:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:57:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:57:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:57:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:57:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:57:27,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:57:27,868 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 21:57:27,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:27 BoogieIcfgContainer [2020-10-25 21:57:27,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:57:27,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:57:27,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:57:27,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:57:27,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:57:26" (1/3) ... [2020-10-25 21:57:27,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462242d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:57:27, skipping insertion in model container [2020-10-25 21:57:27,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:26" (2/3) ... [2020-10-25 21:57:27,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462242d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:57:27, skipping insertion in model container [2020-10-25 21:57:27,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:27" (3/3) ... [2020-10-25 21:57:27,880 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-10-25 21:57:27,893 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:57:27,899 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:57:27,914 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:57:27,944 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:57:27,944 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:57:27,945 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:57:27,945 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:57:27,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:57:27,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:57:27,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:57:27,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:57:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-25 21:57:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:57:27,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:57:27,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:57:27,972 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:57:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:57:27,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-10-25 21:57:27,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:57:27,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69104675] [2020-10-25 21:57:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:57:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:57:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:28,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69104675] [2020-10-25 21:57:28,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:57:28,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:57:28,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320136312] [2020-10-25 21:57:28,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:57:28,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:57:28,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:57:28,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:57:28,180 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-25 21:57:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:57:28,203 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-10-25 21:57:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:57:28,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:57:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:57:28,217 INFO L225 Difference]: With dead ends: 65 [2020-10-25 21:57:28,217 INFO L226 Difference]: Without dead ends: 30 [2020-10-25 21:57:28,221 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 [2020-10-25 21:57:28,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-25 21:57:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-25 21:57:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-25 21:57:28,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-25 21:57:28,264 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-25 21:57:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:57:28,264 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-25 21:57:28,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:57:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-25 21:57:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:57:28,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:57:28,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:57:28,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:57:28,266 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:57:28,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:57:28,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-10-25 21:57:28,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:57:28,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121751527] [2020-10-25 21:57:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:57:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:57:28,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:57:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:57:28,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:57:28,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:57:28,434 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:57:28,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:57:28,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:57:28 BoogieIcfgContainer [2020-10-25 21:57:28,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:57:28,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:57:28,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:57:28,491 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:57:28,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:27" (3/4) ... [2020-10-25 21:57:28,496 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:57:28,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:57:28,503 INFO L168 Benchmark]: Toolchain (without parser) took 1898.60 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.7 MB in the beginning and 25.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:28,504 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 44.0 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:57:28,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.83 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 29.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:28,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 54.5 MB. Free memory was 29.1 MB in the beginning and 27.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:57:28,508 INFO L168 Benchmark]: Boogie Preprocessor took 82.64 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 25.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:28,510 INFO L168 Benchmark]: RCFGBuilder took 759.16 ms. Allocated memory is still 54.5 MB. Free memory was 25.7 MB in the beginning and 34.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:28,510 INFO L168 Benchmark]: TraceAbstraction took 616.26 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 25.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:28,512 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 54.5 MB. Free memory was 25.8 MB in the beginning and 25.3 MB in the end (delta: 497.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:57:28,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 44.0 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.83 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 29.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 54.5 MB. Free memory was 29.1 MB in the beginning and 27.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.64 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 25.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 759.16 ms. Allocated memory is still 54.5 MB. Free memory was 25.7 MB in the beginning and 34.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 616.26 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 25.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.12 ms. Allocated memory is still 54.5 MB. Free memory was 25.8 MB in the beginning and 25.3 MB in the end (delta: 497.6 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 0.2.0-5485861 [2020-10-25 21:57:31,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:57:31,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:57:31,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:57:31,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:57:31,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:57:31,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:57:31,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:57:31,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:57:31,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:57:31,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:57:31,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:57:31,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:57:31,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:57:31,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:57:31,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:57:31,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:57:31,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:57:31,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:57:31,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:57:31,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:57:31,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:57:31,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:57:31,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:57:31,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:57:31,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:57:31,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:57:31,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:57:31,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:57:31,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:57:31,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:57:31,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:57:31,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:57:31,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:57:31,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:57:31,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:57:31,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:57:31,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:57:31,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:57:31,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:57:31,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:57:31,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:57:31,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:57:31,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:57:31,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:57:31,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:57:31,373 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:57:31,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:57:31,373 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:57:31,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:57:31,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:57:31,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:57:31,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:57:31,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:57:31,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:57:31,375 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:57:31,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:57:31,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:57:31,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:57:31,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:57:31,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:57:31,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:57:31,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:57:31,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:57:31,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:57:31,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:57:31,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:57:31,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:57:31,382 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:57:31,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:57:31,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:57:31,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:57:31,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:57:31,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-10-25 21:57:31,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:57:31,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:57:31,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:57:31,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:57:31,881 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:57:31,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-25 21:57:31,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92362495/f1828972cb6b43f08a04f0e5f46f0976/FLAG1a6307297 [2020-10-25 21:57:32,715 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:57:32,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-10-25 21:57:32,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92362495/f1828972cb6b43f08a04f0e5f46f0976/FLAG1a6307297 [2020-10-25 21:57:33,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92362495/f1828972cb6b43f08a04f0e5f46f0976 [2020-10-25 21:57:33,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:57:33,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:57:33,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:57:33,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:57:33,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:57:33,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe20f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33, skipping insertion in model container [2020-10-25 21:57:33,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:57:33,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:57:33,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:57:33,379 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:57:33,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:57:33,502 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:57:33,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33 WrapperNode [2020-10-25 21:57:33,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:57:33,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:57:33,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:57:33,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:57:33,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:57:33,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:57:33,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:57:33,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:57:33,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (1/1) ... [2020-10-25 21:57:33,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:57:33,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:57:33,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:57:33,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:57:33,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (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 [2020-10-25 21:57:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:57:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:57:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 21:57:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:57:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:57:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:57:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 21:57:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:57:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:57:34,834 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:57:34,835 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 21:57:34,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:34 BoogieIcfgContainer [2020-10-25 21:57:34,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:57:34,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:57:34,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:57:34,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:57:34,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:57:33" (1/3) ... [2020-10-25 21:57:34,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e76e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:57:34, skipping insertion in model container [2020-10-25 21:57:34,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:57:33" (2/3) ... [2020-10-25 21:57:34,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e76e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:57:34, skipping insertion in model container [2020-10-25 21:57:34,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:34" (3/3) ... [2020-10-25 21:57:34,848 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-10-25 21:57:34,862 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:57:34,868 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:57:34,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:57:34,916 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:57:34,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:57:34,917 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:57:34,917 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:57:34,917 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:57:34,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:57:34,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:57:34,918 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:57:34,934 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-25 21:57:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:57:34,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:57:34,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:57:34,941 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:57:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:57:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-10-25 21:57:34,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:57:34,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335506209] [2020-10-25 21:57:34,963 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 [2020-10-25 21:57:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:57:35,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:57:35,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:57:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:35,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:57:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:35,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335506209] [2020-10-25 21:57:35,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:57:35,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:57:35,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091820754] [2020-10-25 21:57:35,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:57:35,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:57:35,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:57:35,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:57:35,305 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-25 21:57:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:57:35,338 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-10-25 21:57:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:57:35,340 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:57:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:57:35,351 INFO L225 Difference]: With dead ends: 65 [2020-10-25 21:57:35,352 INFO L226 Difference]: Without dead ends: 30 [2020-10-25 21:57:35,354 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 [2020-10-25 21:57:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-25 21:57:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-25 21:57:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-25 21:57:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-25 21:57:35,391 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-10-25 21:57:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:57:35,391 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-25 21:57:35,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:57:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-25 21:57:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:57:35,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:57:35,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:57:35,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:57:35,611 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:57:35,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:57:35,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-10-25 21:57:35,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:57:35,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270905143] [2020-10-25 21:57:35,614 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 [2020-10-25 21:57:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:57:35,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 21:57:35,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:57:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:36,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:57:39,968 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-25 21:57:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:39,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270905143] [2020-10-25 21:57:39,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:57:39,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-25 21:57:39,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169176872] [2020-10-25 21:57:39,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:57:40,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:57:40,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:57:40,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:57:40,001 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-10-25 21:57:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:57:41,070 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-10-25 21:57:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:57:41,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-10-25 21:57:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:57:41,073 INFO L225 Difference]: With dead ends: 35 [2020-10-25 21:57:41,073 INFO L226 Difference]: Without dead ends: 30 [2020-10-25 21:57:41,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-25 21:57:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-25 21:57:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-25 21:57:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-25 21:57:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-25 21:57:41,088 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-10-25 21:57:41,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:57:41,088 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-25 21:57:41,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:57:41,089 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-25 21:57:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 21:57:41,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:57:41,090 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] [2020-10-25 21:57:41,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:57:41,304 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:57:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:57:41,307 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-10-25 21:57:41,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:57:41,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865877509] [2020-10-25 21:57:41,309 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 [2020-10-25 21:57:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:57:41,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 21:57:41,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:57:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:41,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:57:41,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:57:41,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865877509] [2020-10-25 21:57:41,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:57:41,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:57:41,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525437932] [2020-10-25 21:57:41,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:57:41,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:57:41,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:57:41,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:57:41,681 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2020-10-25 21:57:41,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:57:41,842 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-10-25 21:57:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:57:41,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-25 21:57:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:57:41,843 INFO L225 Difference]: With dead ends: 30 [2020-10-25 21:57:41,843 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:57:41,844 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 [2020-10-25 21:57:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:57:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:57:41,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:57:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:57:41,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-25 21:57:41,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:57:41,847 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:57:41,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:57:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:57:41,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:57:42,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:57:42,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:57:42,181 INFO L277 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-10-25 21:57:42,181 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-10-25 21:57:42,182 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-10-25 21:57:42,183 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-10-25 21:57:42,183 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-10-25 21:57:42,183 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-10-25 21:57:42,183 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-10-25 21:57:42,184 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)) [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:57:42,184 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-10-25 21:57:42,185 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)) [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-10-25 21:57:42,185 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-10-25 21:57:42,185 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-10-25 21:57:42,186 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-10-25 21:57:42,186 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:57:42,186 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)) [2020-10-25 21:57:42,187 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-10-25 21:57:42,187 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-10-25 21:57:42,197 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:57:42 BoogieIcfgContainer [2020-10-25 21:57:42,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:57:42,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:57:42,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:57:42,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:57:42,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:57:34" (3/4) ... [2020-10-25 21:57:42,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:57:42,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-25 21:57:42,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-25 21:57:42,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:57:42,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:57:42,267 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 [2020-10-25 21:57:42,268 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 [2020-10-25 21:57:42,302 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:57:42,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:57:42,304 INFO L168 Benchmark]: Toolchain (without parser) took 9261.44 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.9 MB in the beginning and 16.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,305 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 37.7 MB. Free memory is still 20.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:57:42,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.72 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.3 MB in the beginning and 26.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.01 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 24.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,307 INFO L168 Benchmark]: Boogie Preprocessor took 67.75 ms. Allocated memory is still 46.1 MB. Free memory was 24.3 MB in the beginning and 22.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,308 INFO L168 Benchmark]: RCFGBuilder took 1161.14 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 22.2 MB in the end (delta: 468.2 kB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,309 INFO L168 Benchmark]: TraceAbstraction took 7377.87 ms. Allocated memory is still 46.1 MB. Free memory was 21.8 MB in the beginning and 20.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,309 INFO L168 Benchmark]: Witness Printer took 84.76 ms. Allocated memory is still 46.1 MB. Free memory was 20.1 MB in the beginning and 16.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:57:42,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 37.7 MB. Free memory is still 20.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 454.72 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.3 MB in the beginning and 26.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.01 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 24.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.75 ms. Allocated memory is still 46.1 MB. Free memory was 24.3 MB in the beginning and 22.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1161.14 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 22.2 MB in the end (delta: 468.2 kB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7377.87 ms. Allocated memory is still 46.1 MB. Free memory was 21.8 MB in the beginning and 20.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 84.76 ms. Allocated memory is still 46.1 MB. Free memory was 20.1 MB in the beginning and 16.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 [2020-10-25 21:57:42,328 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,332 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 [2020-10-25 21:57:42,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,335 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 [2020-10-25 21:57:42,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:57:42,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:57:42,346 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: 7.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, 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, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.4s 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, 4.4s 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...