./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/floor.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/floor.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e420964589660c135cf4996f7df16620d0b77eb ................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/floor.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e420964589660c135cf4996f7df16620d0b77eb ........................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: not yet supported float operation signbit --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:55:32,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:55:32,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:55:32,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:55:32,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:55:32,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:55:32,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:55:32,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:55:32,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:55:32,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:55:32,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:55:32,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:55:32,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:55:32,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:55:32,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:55:32,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:55:32,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:55:32,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:55:32,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:55:32,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:55:32,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:55:32,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:55:32,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:55:32,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:55:32,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:55:32,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:55:32,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:55:32,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:55:32,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:55:32,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:55:32,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:55:32,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:55:32,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:55:32,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:55:32,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:55:32,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:55:32,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:55:32,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:55:32,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:55:32,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:55:32,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:55:32,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:55:32,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:55:32,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:55:32,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:55:32,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:55:32,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:55:32,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:55:32,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:55:32,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:55:32,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:55:32,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:55:32,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:55:32,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:55:32,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:55:32,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:55:32,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:55:32,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:55:32,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:55:32,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:55:32,361 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:55:32,362 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:55:32,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:55:32,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:55:32,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:55:32,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:55:32,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:55:32,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:55:32,364 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:55:32,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:55:32,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:55:32,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e420964589660c135cf4996f7df16620d0b77eb [2020-12-01 16:55:32,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:55:32,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:55:32,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:55:32,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:55:32,730 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:55:32,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/../../sv-benchmarks/c/floats-esbmc-regression/floor.i [2020-12-01 16:55:32,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/4aca191b9/f1ce646270654d70b8106b402dfd0213/FLAGc9b796d9c [2020-12-01 16:55:33,493 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:55:33,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/sv-benchmarks/c/floats-esbmc-regression/floor.i [2020-12-01 16:55:33,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/4aca191b9/f1ce646270654d70b8106b402dfd0213/FLAGc9b796d9c [2020-12-01 16:55:33,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/4aca191b9/f1ce646270654d70b8106b402dfd0213 [2020-12-01 16:55:33,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:55:33,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:55:33,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:55:33,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:55:33,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:55:33,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:55:33" (1/1) ... [2020-12-01 16:55:33,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c441c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:55:33, skipping insertion in model container [2020-12-01 16:55:33,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:55:33" (1/1) ... [2020-12-01 16:55:33,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:55:33,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:55:34,486 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: floor at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1692) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-01 16:55:34,493 INFO L168 Benchmark]: Toolchain (without parser) took 741.91 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 85.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:55:34,494 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:55:34,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.92 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 85.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:55:34,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.92 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 85.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: floor de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: floor: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 16:55:37,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:55:37,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:55:37,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:55:37,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:55:37,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:55:37,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:55:37,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:55:37,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:55:37,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:55:37,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:55:37,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:55:37,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:55:37,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:55:37,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:55:37,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:55:37,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:55:37,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:55:37,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:55:37,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:55:37,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:55:37,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:55:37,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:55:37,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:55:37,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:55:37,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:55:37,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:55:37,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:55:37,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:55:37,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:55:37,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:55:37,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:55:37,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:55:37,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:55:37,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:55:37,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:55:37,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:55:37,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:55:37,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:55:37,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:55:37,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:55:37,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2020-12-01 16:55:37,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:55:37,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:55:37,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:55:37,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:55:37,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:55:37,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:55:37,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:55:37,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:55:37,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:55:37,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:55:37,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:55:37,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:55:37,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:55:37,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 16:55:37,318 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 16:55:37,318 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 16:55:37,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:55:37,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:55:37,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:55:37,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:55:37,320 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:55:37,320 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:55:37,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:55:37,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:55:37,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:55:37,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:55:37,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:55:37,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:55:37,324 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-01 16:55:37,324 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 16:55:37,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:55:37,325 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-12-01 16:55:37,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 16:55:37,325 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e420964589660c135cf4996f7df16620d0b77eb [2020-12-01 16:55:37,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:55:37,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:55:37,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:55:37,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:55:37,848 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:55:37,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/../../sv-benchmarks/c/floats-esbmc-regression/floor.i [2020-12-01 16:55:37,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/be15650e3/eea6c64a44384ed7b71764212fecc5b6/FLAG2f2e56d95 [2020-12-01 16:55:38,719 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:55:38,720 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/sv-benchmarks/c/floats-esbmc-regression/floor.i [2020-12-01 16:55:38,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/be15650e3/eea6c64a44384ed7b71764212fecc5b6/FLAG2f2e56d95 [2020-12-01 16:55:38,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7af2551a-8fec-4aba-9c86-ab1f9f3eea9c/bin/ukojak/data/be15650e3/eea6c64a44384ed7b71764212fecc5b6 [2020-12-01 16:55:38,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:55:38,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:55:38,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:55:38,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:55:38,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:55:38,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:55:38" (1/1) ... [2020-12-01 16:55:38,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc27d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:55:38, skipping insertion in model container [2020-12-01 16:55:38,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:55:38" (1/1) ... [2020-12-01 16:55:38,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:55:39,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:55:39,747 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: not yet supported float operation signbit at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOtherUnaryFloatOperation(BitvectorTranslation.java:1143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1692) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-01 16:55:39,757 INFO L168 Benchmark]: Toolchain (without parser) took 788.98 ms. Allocated memory is still 69.2 MB. Free memory was 52.7 MB in the beginning and 52.9 MB in the end (delta: -191.0 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:55:39,759 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 69.2 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:55:39,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.32 ms. Allocated memory is still 69.2 MB. Free memory was 52.6 MB in the beginning and 52.9 MB in the end (delta: -347.0 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:55:39,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 69.2 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.32 ms. Allocated memory is still 69.2 MB. Free memory was 52.6 MB in the beginning and 52.9 MB in the end (delta: -347.0 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: not yet supported float operation signbit de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: not yet supported float operation signbit: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOtherUnaryFloatOperation(BitvectorTranslation.java:1143) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...