./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5758efa3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 606f7c2605a208e0a98efea41e23adfc30d8b8f4 .................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 606f7c2605a208e0a98efea41e23adfc30d8b8f4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-5758efa [2019-11-26 20:27:51,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 20:27:51,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 20:27:51,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 20:27:51,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 20:27:51,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 20:27:51,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 20:27:51,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 20:27:51,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 20:27:51,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 20:27:51,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 20:27:51,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 20:27:51,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 20:27:51,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 20:27:51,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 20:27:51,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 20:27:51,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 20:27:51,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 20:27:51,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 20:27:51,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 20:27:51,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 20:27:51,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 20:27:51,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 20:27:51,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 20:27:51,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 20:27:51,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 20:27:51,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 20:27:51,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 20:27:51,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 20:27:51,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 20:27:51,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 20:27:51,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 20:27:51,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 20:27:51,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 20:27:51,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 20:27:51,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 20:27:51,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 20:27:51,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 20:27:51,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 20:27:51,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 20:27:51,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 20:27:51,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-26 20:27:51,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 20:27:51,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 20:27:51,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 20:27:51,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 20:27:51,322 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 20:27:51,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 20:27:51,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 20:27:51,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 20:27:51,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 20:27:51,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 20:27:51,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 20:27:51,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 20:27:51,326 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 20:27:51,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 20:27:51,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 20:27:51,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 20:27:51,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 20:27:51,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 20:27:51,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 20:27:51,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 20:27:51,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 20:27:51,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 20:27:51,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 20:27:51,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 20:27:51,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 20:27:51,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 20:27:51,330 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 606f7c2605a208e0a98efea41e23adfc30d8b8f4 [2019-11-26 20:27:51,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 20:27:51,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 20:27:51,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 20:27:51,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 20:27:51,658 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 20:27:51,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-11-26 20:27:51,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7069b723d/9233c324eb2a430a8fd1df7253035203/FLAGc73274dc1 [2019-11-26 20:27:52,309 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 20:27:52,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-11-26 20:27:52,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7069b723d/9233c324eb2a430a8fd1df7253035203/FLAGc73274dc1 [2019-11-26 20:27:52,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7069b723d/9233c324eb2a430a8fd1df7253035203 [2019-11-26 20:27:52,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 20:27:52,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 20:27:52,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 20:27:52,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 20:27:52,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 20:27:52,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:27:52" (1/1) ... [2019-11-26 20:27:52,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10712095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:52, skipping insertion in model container [2019-11-26 20:27:52,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:27:52" (1/1) ... [2019-11-26 20:27:52,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 20:27:52,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 20:27:53,040 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1335) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1387) 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:1338) 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:1031) 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:1409) 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:3487) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2302) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:573) 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:125) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 20:27:53,047 INFO L168 Benchmark]: Toolchain (without parser) took 473.51 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 20:27:53,048 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:27:53,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.54 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 20:27:53,051 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 470.54 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-5758efa [2019-11-26 20:27:54,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 20:27:54,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 20:27:55,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 20:27:55,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 20:27:55,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 20:27:55,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 20:27:55,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 20:27:55,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 20:27:55,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 20:27:55,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 20:27:55,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 20:27:55,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 20:27:55,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 20:27:55,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 20:27:55,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 20:27:55,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 20:27:55,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 20:27:55,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 20:27:55,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 20:27:55,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 20:27:55,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 20:27:55,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 20:27:55,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 20:27:55,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 20:27:55,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 20:27:55,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 20:27:55,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 20:27:55,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 20:27:55,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 20:27:55,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 20:27:55,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 20:27:55,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 20:27:55,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 20:27:55,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 20:27:55,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 20:27:55,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 20:27:55,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 20:27:55,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 20:27:55,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 20:27:55,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 20:27:55,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-26 20:27:55,097 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 20:27:55,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 20:27:55,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 20:27:55,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 20:27:55,101 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 20:27:55,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 20:27:55,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 20:27:55,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 20:27:55,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 20:27:55,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 20:27:55,103 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 20:27:55,103 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 20:27:55,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 20:27:55,103 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 20:27:55,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 20:27:55,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 20:27:55,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 20:27:55,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 20:27:55,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 20:27:55,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 20:27:55,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 20:27:55,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 20:27:55,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 20:27:55,105 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 20:27:55,105 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 20:27:55,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 20:27:55,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 20:27:55,106 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-26 20:27:55,106 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 606f7c2605a208e0a98efea41e23adfc30d8b8f4 [2019-11-26 20:27:55,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 20:27:55,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 20:27:55,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 20:27:55,422 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 20:27:55,422 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 20:27:55,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-11-26 20:27:55,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f514094/e86911e8297c4c93a5947d250d08d785/FLAGe6873f388 [2019-11-26 20:27:56,039 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 20:27:56,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-11-26 20:27:56,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f514094/e86911e8297c4c93a5947d250d08d785/FLAGe6873f388 [2019-11-26 20:27:56,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f514094/e86911e8297c4c93a5947d250d08d785 [2019-11-26 20:27:56,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 20:27:56,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 20:27:56,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 20:27:56,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 20:27:56,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 20:27:56,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:27:56" (1/1) ... [2019-11-26 20:27:56,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6762ddd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:56, skipping insertion in model container [2019-11-26 20:27:56,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:27:56" (1/1) ... [2019-11-26 20:27:56,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 20:27:56,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 20:27:56,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:27:56,978 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 20:27:57,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:27:57,349 INFO L208 MainTranslator]: Completed translation [2019-11-26 20:27:57,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57 WrapperNode [2019-11-26 20:27:57,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 20:27:57,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 20:27:57,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 20:27:57,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 20:27:57,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 20:27:57,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 20:27:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 20:27:57,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 20:27:57,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... [2019-11-26 20:27:57,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 20:27:57,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 20:27:57,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 20:27:57,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 20:27:57,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 20:27:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 20:27:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 20:27:57,995 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 20:27:57,995 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-26 20:27:57,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 08:27:57 BoogieIcfgContainer [2019-11-26 20:27:57,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 20:27:57,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 20:27:57,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 20:27:58,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 20:27:58,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 08:27:56" (1/3) ... [2019-11-26 20:27:58,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6cad2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 08:27:58, skipping insertion in model container [2019-11-26 20:27:58,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:27:57" (2/3) ... [2019-11-26 20:27:58,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6cad2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 08:27:58, skipping insertion in model container [2019-11-26 20:27:58,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 08:27:57" (3/3) ... [2019-11-26 20:27:58,005 INFO L109 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2019-11-26 20:27:58,015 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 20:27:58,022 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 20:27:58,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 20:27:58,055 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 20:27:58,056 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 20:27:58,056 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 20:27:58,056 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 20:27:58,056 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 20:27:58,056 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 20:27:58,056 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 20:27:58,057 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 20:27:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-11-26 20:27:58,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 20:27:58,076 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:27:58,077 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 20:27:58,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 20:27:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:27:58,084 INFO L82 PathProgramCache]: Analyzing trace with hash 889523607, now seen corresponding path program 1 times [2019-11-26 20:27:58,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:27:58,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712541290] [2019-11-26 20:27:58,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-26 20:27:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:27:58,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 20:27:58,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:27:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:27:58,239 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:27:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:27:58,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712541290] [2019-11-26 20:27:58,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:27:58,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 20:27:58,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891089620] [2019-11-26 20:27:58,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 20:27:58,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:27:58,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 20:27:58,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 20:27:58,283 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 4 states. [2019-11-26 20:27:58,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:27:58,426 INFO L93 Difference]: Finished difference Result 87 states and 120 transitions. [2019-11-26 20:27:58,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 20:27:58,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-26 20:27:58,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:27:58,439 INFO L225 Difference]: With dead ends: 87 [2019-11-26 20:27:58,439 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 20:27:58,443 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 20:27:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 20:27:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2019-11-26 20:27:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-26 20:27:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-11-26 20:27:58,481 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 6 [2019-11-26 20:27:58,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:27:58,481 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-11-26 20:27:58,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 20:27:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-26 20:27:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 20:27:58,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:27:58,484 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:27:58,698 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 20:27:58,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 20:27:58,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:27:58,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1806855123, now seen corresponding path program 1 times [2019-11-26 20:27:58,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:27:58,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302789902] [2019-11-26 20:27:58,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-26 20:27:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:27:58,762 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 20:27:58,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:27:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:27:58,925 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:27:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:27:59,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302789902] [2019-11-26 20:27:59,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:27:59,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 20:27:59,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144613986] [2019-11-26 20:28:00,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 20:28:00,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:28:00,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 20:28:00,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-26 20:28:00,002 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 8 states. [2019-11-26 20:28:00,660 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-26 20:28:01,608 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-11-26 20:28:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:28:02,165 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2019-11-26 20:28:02,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 20:28:02,169 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-26 20:28:02,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:28:02,170 INFO L225 Difference]: With dead ends: 55 [2019-11-26 20:28:02,171 INFO L226 Difference]: Without dead ends: 51 [2019-11-26 20:28:02,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-11-26 20:28:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-26 20:28:02,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 29. [2019-11-26 20:28:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 20:28:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-26 20:28:02,178 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 7 [2019-11-26 20:28:02,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:28:02,179 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-26 20:28:02,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 20:28:02,179 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-26 20:28:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 20:28:02,180 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:28:02,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:28:02,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 20:28:02,383 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 20:28:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:28:02,384 INFO L82 PathProgramCache]: Analyzing trace with hash -260891071, now seen corresponding path program 1 times [2019-11-26 20:28:02,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:28:02,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015888499] [2019-11-26 20:28:02,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-26 20:28:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:28:02,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 20:28:02,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:28:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:28:02,500 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:28:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:28:02,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015888499] [2019-11-26 20:28:02,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:28:02,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 20:28:02,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943673177] [2019-11-26 20:28:02,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 20:28:02,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:28:02,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 20:28:02,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 20:28:02,511 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 4 states. [2019-11-26 20:28:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:28:02,565 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2019-11-26 20:28:02,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 20:28:02,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-26 20:28:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:28:02,567 INFO L225 Difference]: With dead ends: 47 [2019-11-26 20:28:02,567 INFO L226 Difference]: Without dead ends: 29 [2019-11-26 20:28:02,568 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 20:28:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-26 20:28:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-26 20:28:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 20:28:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2019-11-26 20:28:02,573 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 12 [2019-11-26 20:28:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:28:02,574 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2019-11-26 20:28:02,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 20:28:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2019-11-26 20:28:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 20:28:02,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:28:02,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:28:02,787 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 20:28:02,788 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 20:28:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:28:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1557632932, now seen corresponding path program 1 times [2019-11-26 20:28:02,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:28:02,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643733367] [2019-11-26 20:28:02,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-26 20:28:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:28:02,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 20:28:02,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:28:03,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:28:03,021 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:28:04,271 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-26 20:28:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:28:04,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643733367] [2019-11-26 20:28:04,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:28:04,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 20:28:04,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641446163] [2019-11-26 20:28:04,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 20:28:04,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:28:04,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 20:28:04,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-26 20:28:04,292 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 8 states. [2019-11-26 20:28:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:28:04,880 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2019-11-26 20:28:04,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:28:04,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-26 20:28:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:28:04,881 INFO L225 Difference]: With dead ends: 29 [2019-11-26 20:28:04,881 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 20:28:04,882 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-26 20:28:04,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 20:28:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 20:28:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 20:28:04,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 20:28:04,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-26 20:28:04,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:28:04,883 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 20:28:04,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 20:28:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 20:28:04,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 20:28:05,084 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 20:28:05,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 20:28:05,363 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 28 [2019-11-26 20:28:05,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,366 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,367 INFO L246 CegarLoopResult]: For program point L1096(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,367 INFO L246 CegarLoopResult]: For program point L1096-1(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,367 INFO L242 CegarLoopResult]: At program point L1096-3(lines 1083 1099) the Hoare annotation is: (and (= (_ bv1024 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i) (fp.eq ULTIMATE.start_roundingTest_~roundToNearestSum~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0))) (exists ((v_prenex_2 RoundingMode)) (= ULTIMATE.start_roundingTest_~roundDownSum~0 (fp.add currentRoundingMode ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 1.0)) ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 (/ 3.0 33554432.0)))))) (exists ((v_prenex_2 RoundingMode)) (and (= ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 1.0)) ULTIMATE.start_roundingTest_~f1) (= ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 (/ 3.0 33554432.0))) ULTIMATE.start_roundingTest_~f2))) (= currentRoundingMode roundTowardNegative)) [2019-11-26 20:28:05,367 INFO L246 CegarLoopResult]: For program point L1096-4(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,367 INFO L246 CegarLoopResult]: For program point L1096-5(line 1096) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L242 CegarLoopResult]: At program point L1096-7(lines 1083 1099) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2019-11-26 20:28:05,368 INFO L242 CegarLoopResult]: At program point L1121(lines 1102 1122) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L1089(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L1089-1(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L1089-3(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L1089-4(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,368 INFO L246 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L1089-5(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L1089-7(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,369 INFO L246 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,370 INFO L246 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2019-11-26 20:28:05,371 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1089) no Hoare annotation was computed. [2019-11-26 20:28:05,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,390 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2019-11-26 20:28:05,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2019-11-26 20:28:05,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 08:28:05 BoogieIcfgContainer [2019-11-26 20:28:05,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 20:28:05,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 20:28:05,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 20:28:05,400 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 20:28:05,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 08:27:57" (3/4) ... [2019-11-26 20:28:05,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 20:28:05,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2019-11-26 20:28:05,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-11-26 20:28:05,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 20:28:05,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 20:28:05,444 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1024bv32 == unknown-i-unknown && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608))) && (\exists v_prenex_2 : FloatRoundingMode :: roundDownSum == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)), ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432))))) && (\exists v_prenex_2 : FloatRoundingMode :: ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) == f1 && ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)) == f2)) && unknown-currentRoundingMode-unknown == ~roundTowardNegative [2019-11-26 20:28:05,482 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-26 20:28:05,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 20:28:05,484 INFO L168 Benchmark]: Toolchain (without parser) took 9156.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.9 MB in the beginning and 876.2 MB in the end (delta: 70.8 MB). Peak memory consumption was 220.7 MB. Max. memory is 11.5 GB. [2019-11-26 20:28:05,485 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:28:05,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1018.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -84.6 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-26 20:28:05,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:28:05,486 INFO L168 Benchmark]: Boogie Preprocessor took 30.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:28:05,487 INFO L168 Benchmark]: RCFGBuilder took 557.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-26 20:28:05,487 INFO L168 Benchmark]: TraceAbstraction took 7401.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 876.2 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. [2019-11-26 20:28:05,488 INFO L168 Benchmark]: Witness Printer took 82.28 ms. Allocated memory is still 1.2 GB. Free memory is still 876.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:28:05,491 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1018.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -84.6 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 557.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7401.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 876.2 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. * Witness Printer took 82.28 ms. Allocated memory is still 1.2 GB. Free memory is still 876.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1096]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1096]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1089]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1089]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1083]: Loop Invariant [2019-11-26 20:28:05,503 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,504 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1102]: Loop Invariant [2019-11-26 20:28:05,504 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1083]: Loop Invariant [2019-11-26 20:28:05,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2019-11-26 20:28:05,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2019-11-26 20:28:05,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2019-11-26 20:28:05,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2019-11-26 20:28:05,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 20:28:05,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((1024bv32 == unknown-i-unknown && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608))) && (\exists v_prenex_2 : FloatRoundingMode :: roundDownSum == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)), ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432))))) && (\exists v_prenex_2 : FloatRoundingMode :: ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) == f1 && ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)) == f2)) && unknown-currentRoundingMode-unknown == ~roundTowardNegative - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 4 error locations. Result: SAFE, OverallTime: 7.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 86 SDtfs, 255 SDslu, 67 SDs, 0 SdLazy, 132 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 31 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 77 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 15 QuantifiedInterpolants, 4587 SizeOfPredicates, 22 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...