./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX --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 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:40:11,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:40:11,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:40:12,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:40:12,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:40:12,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:40:12,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:40:12,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:40:12,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:40:12,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:40:12,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:40:12,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:40:12,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:40:12,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:40:12,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:40:12,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:40:12,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:40:12,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:40:12,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:40:12,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:40:12,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:40:12,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:40:12,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:40:12,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:40:12,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:40:12,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:40:12,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:40:12,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:40:12,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:40:12,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:40:12,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:40:12,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:40:12,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:40:12,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:40:12,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:40:12,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:40:12,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:40:12,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:40:12,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:40:12,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:40:12,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:40:12,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 10:40:12,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:40:12,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:40:12,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:40:12,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:40:12,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:40:12,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:40:12,224 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:40:12,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:40:12,225 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:40:12,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:40:12,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:40:12,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:40:12,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:40:12,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:40:12,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:40:12,228 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:40:12,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:40:12,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:40:12,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:40:12,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:40:12,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:40:12,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:40:12,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:40:12,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:40:12,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:40:12,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:40:12,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:40:12,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:40:12,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:40:12,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:40:12,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:40:12,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:40:12,235 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_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-09 10:40:12,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:40:12,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:40:12,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:40:12,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:40:12,582 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:40:12,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-09 10:40:12,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/90aaec182/d5469c39f47c45dd96715ba53dd4fa46/FLAG795edf79c [2021-11-09 10:40:13,355 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:40:13,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-09 10:40:13,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/90aaec182/d5469c39f47c45dd96715ba53dd4fa46/FLAG795edf79c [2021-11-09 10:40:13,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/90aaec182/d5469c39f47c45dd96715ba53dd4fa46 [2021-11-09 10:40:13,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:40:13,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:40:13,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:13,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:40:13,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:40:13,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:13" (1/1) ... [2021-11-09 10:40:13,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a487e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:13, skipping insertion in model container [2021-11-09 10:40:13,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:13" (1/1) ... [2021-11-09 10:40:13,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:40:13,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:14,358 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: fpclassify 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:1732) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) 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:1103) 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:2378) 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:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) 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:2378) 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:1598) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) 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:1452) 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:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) 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) [2021-11-09 10:40:14,365 INFO L168 Benchmark]: Toolchain (without parser) took 780.58 ms. Allocated memory is still 88.1 MB. Free memory was 55.6 MB in the beginning and 62.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:14,367 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:14,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.87 ms. Allocated memory is still 88.1 MB. Free memory was 55.4 MB in the beginning and 62.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:14,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.87 ms. Allocated memory is still 88.1 MB. Free memory was 55.4 MB in the beginning and 62.5 MB in the end (delta: -7.2 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: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX --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 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:40:17,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:40:17,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:40:17,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:40:17,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:40:17,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:40:17,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:40:17,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:40:17,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:40:17,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:40:17,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:40:17,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:40:17,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:40:17,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:40:17,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:40:17,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:40:17,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:40:17,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:40:17,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:40:17,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:40:17,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:40:17,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:40:17,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:40:17,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:40:17,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:40:17,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:40:17,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:40:17,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:40:17,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:40:17,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:40:17,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:40:17,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:40:17,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:40:17,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:40:17,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:40:17,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:40:17,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:40:17,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:40:17,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:40:17,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:40:17,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:40:17,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 10:40:17,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:40:17,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:40:17,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:40:17,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:40:17,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:40:17,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:40:17,325 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:40:17,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:40:17,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:40:17,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:40:17,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:40:17,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:40:17,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:40:17,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:40:17,329 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 10:40:17,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 10:40:17,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:40:17,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:40:17,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:40:17,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:40:17,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:40:17,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:40:17,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:40:17,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:40:17,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:40:17,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:40:17,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:40:17,333 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 10:40:17,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 10:40:17,334 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:40:17,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:40:17,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:40:17,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:40:17,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 10:40:17,335 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_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-09 10:40:17,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:40:17,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:40:17,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:40:17,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:40:17,875 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:40:17,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-09 10:40:17,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/498831378/c6faa18dda934ea99eedc47365b2c1a8/FLAG807aa43ab [2021-11-09 10:40:18,639 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:40:18,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-09 10:40:18,659 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/498831378/c6faa18dda934ea99eedc47365b2c1a8/FLAG807aa43ab [2021-11-09 10:40:18,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/data/498831378/c6faa18dda934ea99eedc47365b2c1a8 [2021-11-09 10:40:18,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:40:18,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:40:18,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:18,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:40:18,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:40:18,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da8614e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18, skipping insertion in model container [2021-11-09 10:40:18,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:40:19,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:19,827 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-09 10:40:19,834 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-09 10:40:19,838 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-09 10:40:19,841 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-09 10:40:19,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-09 10:40:19,848 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-09 10:40:19,854 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-09 10:40:19,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:19,872 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:40:19,928 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-09 10:40:19,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-09 10:40:19,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-09 10:40:19,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-09 10:40:19,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-09 10:40:19,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-09 10:40:19,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-09 10:40:19,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:20,139 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:40:20,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20 WrapperNode [2021-11-09 10:40:20,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:20,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:20,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:40:20,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:40:20,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:20,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:40:20,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:40:20,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:40:20,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:40:20,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:40:20,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:40:20,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:40:20,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (1/1) ... [2021-11-09 10:40:20,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:40:20,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:20,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:20,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:40:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 10:40:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:40:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:40:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:40:20,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:40:20,669 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 10:40:20,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20 BoogieIcfgContainer [2021-11-09 10:40:20,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:40:20,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:40:20,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:40:20,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:40:20,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:40:18" (1/3) ... [2021-11-09 10:40:20,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575af2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:40:20, skipping insertion in model container [2021-11-09 10:40:20,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:20" (2/3) ... [2021-11-09 10:40:20,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575af2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:40:20, skipping insertion in model container [2021-11-09 10:40:20,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20" (3/3) ... [2021-11-09 10:40:20,699 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib2.i [2021-11-09 10:40:20,705 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:40:20,706 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-09 10:40:20,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:40:20,782 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 10:40:20,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-09 10:40:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-09 10:40:20,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:20,805 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-09 10:40:20,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 10:40:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:20,813 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-09 10:40:20,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:20,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128497262] [2021-11-09 10:40:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:20,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:20,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:20,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:20,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 10:40:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:20,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:40:20,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:21,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:21,310 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:21,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128497262] [2021-11-09 10:40:21,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128497262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:21,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:21,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-09 10:40:21,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915645745] [2021-11-09 10:40:21,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:40:21,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:40:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:40:21,341 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:21,414 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2021-11-09 10:40:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:40:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-09 10:40:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:21,426 INFO L225 Difference]: With dead ends: 41 [2021-11-09 10:40:21,426 INFO L226 Difference]: Without dead ends: 12 [2021-11-09 10:40:21,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:40:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-09 10:40:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-09 10:40:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-09 10:40:21,467 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 4 [2021-11-09 10:40:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:21,467 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-09 10:40:21,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-09 10:40:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 10:40:21,470 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:21,471 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:21,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:21,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:21,684 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 10:40:21,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1908731737, now seen corresponding path program 1 times [2021-11-09 10:40:21,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:21,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948550798] [2021-11-09 10:40:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,688 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:21,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:21,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:21,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 10:40:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:21,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:40:21,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:22,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:23,039 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:23,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948550798] [2021-11-09 10:40:23,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948550798] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:23,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:23,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-09 10:40:23,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5777308] [2021-11-09 10:40:23,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:40:23,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:23,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:40:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:40:23,047 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:23,103 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-09 10:40:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:40:23,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 10:40:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:23,108 INFO L225 Difference]: With dead ends: 12 [2021-11-09 10:40:23,108 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 10:40:23,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:40:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 10:40:23,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 10:40:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 10:40:23,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-09 10:40:23,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:23,119 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:23,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 10:40:23,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 10:40:23,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,124 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,124 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,125 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,125 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,125 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:40:23,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:23,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:23,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 10:40:23,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 10:40:23,395 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2021-11-09 10:40:23,395 INFO L857 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-11-09 10:40:23,395 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2021-11-09 10:40:23,396 INFO L857 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2021-11-09 10:40:23,396 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 10:40:23,396 INFO L857 garLoopResultBuilder]: For program point L383(line 383) no Hoare annotation was computed. [2021-11-09 10:40:23,396 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2021-11-09 10:40:23,396 INFO L857 garLoopResultBuilder]: For program point L383-1(line 383) no Hoare annotation was computed. [2021-11-09 10:40:23,397 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 10:40:23,397 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 10:40:23,397 INFO L857 garLoopResultBuilder]: For program point L383-3(line 383) no Hoare annotation was computed. [2021-11-09 10:40:23,397 INFO L857 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2021-11-09 10:40:23,398 INFO L857 garLoopResultBuilder]: For program point L379-2(lines 374 385) no Hoare annotation was computed. [2021-11-09 10:40:23,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2021-11-09 10:40:23,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 10:40:23,399 INFO L853 garLoopResultBuilder]: At program point L384(lines 373 385) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2021-11-09 10:40:23,399 INFO L857 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-09 10:40:23,399 INFO L857 garLoopResultBuilder]: For program point L380-2(lines 374 385) no Hoare annotation was computed. [2021-11-09 10:40:23,399 INFO L857 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2021-11-09 10:40:23,400 INFO L857 garLoopResultBuilder]: For program point L376-1(line 376) no Hoare annotation was computed. [2021-11-09 10:40:23,400 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2021-11-09 10:40:23,400 INFO L857 garLoopResultBuilder]: For program point L376-3(lines 374 385) no Hoare annotation was computed. [2021-11-09 10:40:23,401 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2021-11-09 10:40:23,401 INFO L857 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2021-11-09 10:40:23,401 INFO L857 garLoopResultBuilder]: For program point L381-2(line 381) no Hoare annotation was computed. [2021-11-09 10:40:23,401 INFO L857 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2021-11-09 10:40:23,402 INFO L857 garLoopResultBuilder]: For program point L377-2(lines 374 385) no Hoare annotation was computed. [2021-11-09 10:40:23,402 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2021-11-09 10:40:23,405 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 10:40:23,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:40:23,414 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-09 10:40:23,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-09 10:40:23,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:40:23 BoogieIcfgContainer [2021-11-09 10:40:23,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:40:23,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:40:23,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:40:23,424 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:40:23,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20" (3/4) ... [2021-11-09 10:40:23,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 10:40:23,439 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-09 10:40:23,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-09 10:40:23,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 10:40:23,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 10:40:23,471 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2021-11-09 10:40:23,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:40:23,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:40:23,491 INFO L168 Benchmark]: Toolchain (without parser) took 4581.08 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 60.3 MB in the beginning and 64.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,492 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:23,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1231.21 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.5 MB in the end (delta: -381.6 kB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.83 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 58.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,495 INFO L168 Benchmark]: Boogie Preprocessor took 30.88 ms. Allocated memory is still 81.8 MB. Free memory was 58.0 MB in the beginning and 56.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,495 INFO L168 Benchmark]: RCFGBuilder took 386.10 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 46.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,496 INFO L168 Benchmark]: TraceAbstraction took 2748.49 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 46.3 MB in the beginning and 67.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,497 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 117.4 MB. Free memory was 67.1 MB in the beginning and 64.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:23,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1231.21 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.5 MB in the end (delta: -381.6 kB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.83 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 58.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.88 ms. Allocated memory is still 81.8 MB. Free memory was 58.0 MB in the beginning and 56.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 386.10 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 46.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2748.49 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 46.3 MB in the beginning and 67.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 66.29 ms. Allocated memory is still 117.4 MB. Free memory was 67.1 MB in the beginning and 64.0 MB in the end (delta: 3.1 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 376]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 377]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 379]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 381]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 383]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 27 SDslu, 4 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 8 QuantifiedInterpolants, 86 SizeOfPredicates, 6 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 373]: Loop Invariant [2021-11-09 10:40:23,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-09 10:40:23,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) RESULT: Ultimate proved your program to be correct! [2021-11-09 10:40:23,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fc3f3bb-a445-4df0-9a0c-6f48724af61a/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE