./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91c18909fa64fb894260d901851992225c0131b1 ............................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91c18909fa64fb894260d901851992225c0131b1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:56:00,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:56:00,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:56:00,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:56:00,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:56:00,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:56:00,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:56:00,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:56:00,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:56:00,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:56:00,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:56:00,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:56:00,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:56:00,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:56:00,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:56:00,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:56:00,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:56:00,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:56:00,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:56:00,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:56:00,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:56:00,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:56:00,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:56:00,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:56:00,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:56:00,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:56:00,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:56:00,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:56:00,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:56:00,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:56:00,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:56:00,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:56:00,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:56:00,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:56:00,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:56:00,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:56:00,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:56:00,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:56:00,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:56:00,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:56:00,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:56:00,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:56:00,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:56:00,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:56:00,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:56:00,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:56:00,335 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:56:00,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:56:00,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:56:00,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:56:00,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:56:00,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:56:00,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:56:00,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:56:00,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:56:00,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:56:00,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:56:00,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:56:00,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:56:00,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:56:00,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:56:00,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:56:00,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:56:00,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:56:00,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:56:00,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:56:00,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:56:00,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:56:00,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:56:00,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:56:00,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:56:00,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-10-24 21:56:00,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:56:00,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:56:00,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:56:00,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:56:00,769 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:56:00,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 21:56:00,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91af65faf/098a795da7484807b1b421663194d7b6/FLAG6722df51b [2020-10-24 21:56:01,694 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:56:01,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 21:56:01,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91af65faf/098a795da7484807b1b421663194d7b6/FLAG6722df51b [2020-10-24 21:56:01,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91af65faf/098a795da7484807b1b421663194d7b6 [2020-10-24 21:56:01,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:56:01,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:56:01,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:56:01,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:56:01,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:56:01,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:01" (1/1) ... [2020-10-24 21:56:01,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb6fd0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:01, skipping insertion in model container [2020-10-24 21:56:01,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:01" (1/1) ... [2020-10-24 21:56:01,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:56:02,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:56:02,584 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.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1382) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 21:56:02,591 INFO L168 Benchmark]: Toolchain (without parser) took 642.47 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 26.5 MB in the end (delta: -325.3 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:02,592 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 50.3 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:56:02,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.19 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 26.5 MB in the end (delta: -986.2 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:02,595 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 50.3 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.19 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 26.5 MB in the end (delta: -986.2 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 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 0.2.0-a4ecdab [2020-10-24 21:56:05,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:56:05,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:56:05,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:56:05,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:56:05,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:56:05,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:56:05,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:56:05,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:56:05,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:56:05,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:56:05,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:56:05,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:56:05,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:56:05,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:56:05,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:56:05,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:56:05,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:56:05,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:56:05,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:56:05,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:56:05,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:56:05,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:56:05,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:56:05,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:56:05,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:56:05,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:56:05,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:56:05,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:56:05,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:56:05,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:56:05,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:56:05,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:56:05,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:56:05,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:56:05,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:56:05,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:56:05,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:56:05,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:56:05,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:56:05,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:56:05,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:56:05,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:56:05,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:56:05,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:56:05,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:56:05,185 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:56:05,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:56:05,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:56:05,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:56:05,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:56:05,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:56:05,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:56:05,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:56:05,188 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:56:05,188 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:56:05,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:56:05,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:56:05,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:56:05,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:56:05,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:56:05,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:56:05,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:56:05,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:56:05,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:56:05,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:56:05,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:56:05,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:56:05,192 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:56:05,192 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:56:05,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:56:05,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:56:05,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:56:05,194 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-10-24 21:56:05,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:56:05,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:56:05,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:56:05,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:56:05,638 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:56:05,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 21:56:05,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be335076/1e351438d5d44d53a9e178909ed88d3f/FLAG97b7ba345 [2020-10-24 21:56:06,577 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:56:06,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-10-24 21:56:06,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be335076/1e351438d5d44d53a9e178909ed88d3f/FLAG97b7ba345 [2020-10-24 21:56:06,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be335076/1e351438d5d44d53a9e178909ed88d3f [2020-10-24 21:56:06,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:56:06,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:56:06,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:56:06,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:56:06,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:56:06,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:06" (1/1) ... [2020-10-24 21:56:06,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb7410e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:06, skipping insertion in model container [2020-10-24 21:56:06,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:06" (1/1) ... [2020-10-24 21:56:06,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:56:06,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:56:07,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:56:07,430 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:56:07,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:56:07,869 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:56:07,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07 WrapperNode [2020-10-24 21:56:07,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:56:07,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:56:07,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:56:07,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:56:07,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:07,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:07,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:56:07,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:56:07,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:56:07,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:56:07,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:07,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:07,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:07,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:08,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:08,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:08,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... [2020-10-24 21:56:08,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:56:08,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:56:08,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:56:08,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:56:08,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:56:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:56:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:56:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:56:08,752 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:56:08,753 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 21:56:08,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:56:08 BoogieIcfgContainer [2020-10-24 21:56:08,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:56:08,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:56:08,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:56:08,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:56:08,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:56:06" (1/3) ... [2020-10-24 21:56:08,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38949b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:56:08, skipping insertion in model container [2020-10-24 21:56:08,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:07" (2/3) ... [2020-10-24 21:56:08,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38949b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:56:08, skipping insertion in model container [2020-10-24 21:56:08,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:56:08" (3/3) ... [2020-10-24 21:56:08,766 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-10-24 21:56:08,779 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:56:08,785 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-24 21:56:08,800 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-24 21:56:08,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:56:08,830 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:56:08,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:56:08,830 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:56:08,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:56:08,831 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:56:08,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:56:08,831 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:56:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-10-24 21:56:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:56:08,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:08,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:08,855 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1805428198, now seen corresponding path program 1 times [2020-10-24 21:56:08,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:08,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158616745] [2020-10-24 21:56:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 21:56:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:08,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 21:56:08,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:09,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:09,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158616745] [2020-10-24 21:56:09,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:09,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:56:09,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918596780] [2020-10-24 21:56:09,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:56:09,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:09,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:56:09,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:56:09,069 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2020-10-24 21:56:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:09,199 INFO L93 Difference]: Finished difference Result 113 states and 162 transitions. [2020-10-24 21:56:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 21:56:09,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-24 21:56:09,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:09,212 INFO L225 Difference]: With dead ends: 113 [2020-10-24 21:56:09,212 INFO L226 Difference]: Without dead ends: 56 [2020-10-24 21:56:09,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:56:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-24 21:56:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 41. [2020-10-24 21:56:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 21:56:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-24 21:56:09,256 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 7 [2020-10-24 21:56:09,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:09,256 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-24 21:56:09,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:56:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-24 21:56:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 21:56:09,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:09,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:09,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:56:09,460 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:09,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash 177934122, now seen corresponding path program 1 times [2020-10-24 21:56:09,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:09,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814370368] [2020-10-24 21:56:09,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 21:56:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:09,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 21:56:09,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:09,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:10,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814370368] [2020-10-24 21:56:10,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:10,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 21:56:10,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640295402] [2020-10-24 21:56:10,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:56:10,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:10,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:56:10,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:56:10,950 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2020-10-24 21:56:11,651 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-10-24 21:56:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:13,570 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2020-10-24 21:56:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 21:56:13,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-10-24 21:56:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:13,572 INFO L225 Difference]: With dead ends: 66 [2020-10-24 21:56:13,573 INFO L226 Difference]: Without dead ends: 63 [2020-10-24 21:56:13,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-24 21:56:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-24 21:56:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 38. [2020-10-24 21:56:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-24 21:56:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-10-24 21:56:13,582 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 8 [2020-10-24 21:56:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:13,583 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-10-24 21:56:13,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:56:13,583 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-10-24 21:56:13,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 21:56:13,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:13,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:13,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 21:56:13,791 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:13,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1941724699, now seen corresponding path program 1 times [2020-10-24 21:56:13,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:13,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326202684] [2020-10-24 21:56:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 21:56:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:13,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 21:56:13,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:13,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:13,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326202684] [2020-10-24 21:56:13,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:13,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:56:13,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806003090] [2020-10-24 21:56:13,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:56:13,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:13,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:56:13,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:56:13,915 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 4 states. [2020-10-24 21:56:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:13,972 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2020-10-24 21:56:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:56:13,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 21:56:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:13,977 INFO L225 Difference]: With dead ends: 65 [2020-10-24 21:56:13,977 INFO L226 Difference]: Without dead ends: 38 [2020-10-24 21:56:13,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:56:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-24 21:56:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-24 21:56:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-24 21:56:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-10-24 21:56:13,993 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 13 [2020-10-24 21:56:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:13,993 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-10-24 21:56:13,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:56:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-10-24 21:56:13,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 21:56:13,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:13,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:14,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 21:56:14,209 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:14,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:14,210 INFO L82 PathProgramCache]: Analyzing trace with hash -745441216, now seen corresponding path program 1 times [2020-10-24 21:56:14,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:14,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796545271] [2020-10-24 21:56:14,212 INFO L95 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 [2020-10-24 21:56:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:14,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 21:56:14,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:14,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:16,005 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-24 21:56:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:16,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796545271] [2020-10-24 21:56:16,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:16,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 21:56:16,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188441011] [2020-10-24 21:56:16,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:56:16,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:16,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:56:16,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:56:16,019 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 8 states. [2020-10-24 21:56:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:17,038 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-10-24 21:56:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:56:17,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-24 21:56:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:17,044 INFO L225 Difference]: With dead ends: 38 [2020-10-24 21:56:17,045 INFO L226 Difference]: Without dead ends: 35 [2020-10-24 21:56:17,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-24 21:56:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-24 21:56:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-24 21:56:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-24 21:56:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-10-24 21:56:17,052 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 15 [2020-10-24 21:56:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:17,053 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-10-24 21:56:17,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:56:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-10-24 21:56:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-24 21:56:17,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:17,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:17,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 21:56:17,260 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:17,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1207633360, now seen corresponding path program 1 times [2020-10-24 21:56:17,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:17,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068697232] [2020-10-24 21:56:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 21:56:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:17,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-24 21:56:17,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:17,488 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:56:17,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 21:56:17,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 21:56:17,667 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-24 21:56:17,671 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-24 21:56:18,911 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-10-24 21:56:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:18,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:23,918 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-10-24 21:56:23,935 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-24 21:56:23,936 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:56:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:24,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068697232] [2020-10-24 21:56:24,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:24,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2020-10-24 21:56:24,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464738050] [2020-10-24 21:56:24,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-24 21:56:24,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:24,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-24 21:56:24,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-24 21:56:24,726 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 15 states. [2020-10-24 21:56:26,283 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 21:56:28,676 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-10-24 21:56:29,515 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-24 21:56:30,079 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2020-10-24 21:56:30,483 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-10-24 21:56:30,760 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-10-24 21:56:32,099 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-10-24 21:56:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:32,451 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-10-24 21:56:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-24 21:56:32,454 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-10-24 21:56:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:32,455 INFO L225 Difference]: With dead ends: 35 [2020-10-24 21:56:32,455 INFO L226 Difference]: Without dead ends: 32 [2020-10-24 21:56:32,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-10-24 21:56:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-24 21:56:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-24 21:56:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-24 21:56:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-10-24 21:56:32,460 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 24 [2020-10-24 21:56:32,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:32,460 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-10-24 21:56:32,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-24 21:56:32,460 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-10-24 21:56:32,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-24 21:56:32,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:56:32,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:56:32,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 21:56:32,671 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:56:32,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:56:32,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2144167093, now seen corresponding path program 1 times [2020-10-24 21:56:32,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:56:32,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394522422] [2020-10-24 21:56:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 21:56:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:56:32,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-24 21:56:32,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:56:32,886 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:56:32,913 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 21:56:32,914 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 21:56:33,057 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-24 21:56:33,741 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-10-24 21:56:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:33,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:56:36,402 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-24 21:56:38,034 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-24 21:56:39,747 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-10-24 21:56:39,752 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:56:39,753 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:56:42,222 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-10-24 21:56:43,917 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-24 21:56:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:56:43,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394522422] [2020-10-24 21:56:43,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:56:43,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-10-24 21:56:43,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67985116] [2020-10-24 21:56:43,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 21:56:43,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:56:43,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 21:56:43,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-24 21:56:43,969 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 16 states. [2020-10-24 21:56:47,831 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 21:56:50,019 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-10-24 21:56:51,947 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-10-24 21:56:53,639 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-24 21:56:54,690 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-10-24 21:56:55,133 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-10-24 21:56:55,495 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-10-24 21:56:55,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:56:55,657 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-10-24 21:56:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 21:56:55,664 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2020-10-24 21:56:55,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:56:55,664 INFO L225 Difference]: With dead ends: 32 [2020-10-24 21:56:55,664 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:56:55,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2020-10-24 21:56:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:56:55,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:56:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:56:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:56:55,666 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-10-24 21:56:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:56:55,666 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:56:55,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 21:56:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:56:55,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:56:55,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 21:56:55,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:56:57,290 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-24 21:56:57,305 INFO L274 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,306 INFO L274 CegarLoopResult]: For program point L1110(line 1110) no Hoare annotation was computed. [2020-10-24 21:56:57,307 INFO L270 CegarLoopResult]: At program point L1110-2(lines 1097 1113) the Hoare annotation is: (and (exists ((ULTIMATE.start_roundingTest_~f1 (_ FloatingPoint 8 24)) (ULTIMATE.start_roundingTest_~f2 (_ FloatingPoint 8 24)) (v_prenex_4 RoundingMode)) (and (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 12582911.0 140737488355328.0)) ULTIMATE.start_roundingTest_~f2) (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 16777215.0 16777216.0)) ULTIMATE.start_roundingTest_~f1) (= (fp.add currentRoundingMode ULTIMATE.start_roundingTest_~f1 ULTIMATE.start_roundingTest_~f2) ULTIMATE.start_roundingTest_~roundDownSum~0) (fp.lt ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_4 (/ 8388609.0 8388608.0))) (fp.lt ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_4 (/ 12582913.0 140737488355328.0))))) (= currentRoundingMode roundTowardNegative) (= (_ bv1024 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i) (exists ((v_prenex_2 RoundingMode)) (and (= ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 1.0))) (= ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 (/ 3.0 33554432.0)))))) (fp.eq ULTIMATE.start_roundingTest_~roundToNearestSum~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0)))) [2020-10-24 21:56:57,307 INFO L274 CegarLoopResult]: For program point L1110-3(line 1110) no Hoare annotation was computed. [2020-10-24 21:56:57,307 INFO L270 CegarLoopResult]: At program point L1110-5(lines 1097 1113) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-10-24 21:56:57,307 INFO L270 CegarLoopResult]: At program point L1135(lines 1116 1136) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-10-24 21:56:57,307 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,307 INFO L274 CegarLoopResult]: For program point L1103(line 1103) no Hoare annotation was computed. [2020-10-24 21:56:57,307 INFO L274 CegarLoopResult]: For program point L1103-2(line 1103) no Hoare annotation was computed. [2020-10-24 21:56:57,307 INFO L274 CegarLoopResult]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,308 INFO L274 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,309 INFO L274 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,310 INFO L274 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:56:57,311 INFO L274 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-10-24 21:56:57,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-10-24 21:56:57,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-10-24 21:56:57,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:56:57 BoogieIcfgContainer [2020-10-24 21:56:57,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:56:57,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:56:57,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:56:57,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:56:57,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:56:08" (3/4) ... [2020-10-24 21:56:57,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:56:57,381 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-10-24 21:56:57,381 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-10-24 21:56:57,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-24 21:56:57,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-24 21:56:57,417 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)))) && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) [2020-10-24 21:56:57,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:56:57,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:56:57,480 INFO L168 Benchmark]: Toolchain (without parser) took 50708.73 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 38.3 MB in the beginning and 19.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,484 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 30.4 MB in the beginning and 30.4 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:56:57,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1090.87 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.7 MB in the beginning and 31.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.07 ms. Allocated memory is still 67.1 MB. Free memory was 30.6 MB in the beginning and 28.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,485 INFO L168 Benchmark]: Boogie Preprocessor took 72.87 ms. Allocated memory is still 67.1 MB. Free memory was 28.4 MB in the beginning and 26.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,486 INFO L168 Benchmark]: RCFGBuilder took 713.20 ms. Allocated memory is still 67.1 MB. Free memory was 26.4 MB in the beginning and 35.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,486 INFO L168 Benchmark]: TraceAbstraction took 48588.23 ms. Allocated memory is still 67.1 MB. Free memory was 34.7 MB in the beginning and 23.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,487 INFO L168 Benchmark]: Witness Printer took 130.91 ms. Allocated memory is still 67.1 MB. Free memory was 23.1 MB in the beginning and 19.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:56:57,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 30.4 MB in the beginning and 30.4 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1090.87 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.7 MB in the beginning and 31.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.07 ms. Allocated memory is still 67.1 MB. Free memory was 30.6 MB in the beginning and 28.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.87 ms. Allocated memory is still 67.1 MB. Free memory was 28.4 MB in the beginning and 26.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 713.20 ms. Allocated memory is still 67.1 MB. Free memory was 26.4 MB in the beginning and 35.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 48588.23 ms. Allocated memory is still 67.1 MB. Free memory was 34.7 MB in the beginning and 23.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 130.91 ms. Allocated memory is still 67.1 MB. Free memory was 23.1 MB in the beginning and 19.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable 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 i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: 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: 1097]: Loop Invariant [2020-10-24 21:56:57,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-10-24 21:56:57,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-10-24 21:56:57,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-24 21:56:57,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-10-24 21:56:57,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-10-24 21:56:57,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:56:57,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)))) && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) - InvariantResult [Line: 1097]: Loop Invariant [2020-10-24 21:56:57,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1116]: Loop Invariant [2020-10-24 21:56:57,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-10-24 21:56:57,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 438 SDslu, 297 SDs, 0 SdLazy, 355 SolverSat, 66 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 32.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 64 HoareAnnotationTreeSize, 3 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 136 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 184 ConstructedInterpolants, 36 QuantifiedInterpolants, 30227 SizeOfPredicates, 52 NumberOfNonLiveVariables, 278 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...