./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 3a877d22 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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:22:20,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:22:20,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:22:20,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:22:20,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:22:20,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:22:20,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:22:20,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:22:20,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:22:20,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:22:20,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:22:20,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:22:20,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:22:20,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:22:20,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:22:20,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:22:20,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:22:20,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:22:20,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:22:20,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:22:20,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:22:20,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:22:20,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:22:20,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:22:20,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:22:20,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:22:20,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:22:20,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:22:20,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:22:20,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:22:20,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:22:20,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:22:20,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:22:20,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:22:20,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:22:20,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:22:20,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:22:20,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:22:20,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:22:20,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:22:20,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:22:20,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:22:20,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:22:20,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:22:20,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:22:20,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:22:20,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:22:20,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:22:20,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:22:20,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:22:20,159 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:22:20,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:22:20,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:22:20,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:22:20,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:22:20,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:22:20,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:22:20,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:22:20,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:22:20,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:22:20,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:22:20,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:22:20,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:22:20,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:22:20,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:22:20,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:22:20,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:22:20,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:22:20,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:22:20,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:22:20,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:22:20,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:22:20,165 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:22:20,165 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:22:20,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:22:20,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:22:20,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-12-15 10:22:20,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:22:20,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:22:20,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:22:20,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:22:20,421 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:22:20,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-12-15 10:22:20,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a14610c/e2d21e51fde94912b2686473be11f819/FLAG490ca2f00 [2021-12-15 10:22:20,935 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:22:20,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-12-15 10:22:20,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a14610c/e2d21e51fde94912b2686473be11f819/FLAG490ca2f00 [2021-12-15 10:22:21,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a14610c/e2d21e51fde94912b2686473be11f819 [2021-12-15 10:22:21,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:22:21,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:22:21,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:22:21,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:22:21,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:22:21,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:22:21" (1/1) ... [2021-12-15 10:22:21,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b195fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:21, skipping insertion in model container [2021-12-15 10:22:21,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:22:21" (1/1) ... [2021-12-15 10:22:21,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:22:21,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:22:21,747 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:1482) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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:1385) 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:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:22:21,756 INFO L158 Benchmark]: Toolchain (without parser) took 474.63ms. Allocated memory is still 96.5MB. Free memory was 65.0MB in the beginning and 70.2MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:22:21,756 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:22:21,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.19ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 70.2MB in the end (delta: -5.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:22:21,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.19ms. Allocated memory is still 96.5MB. Free memory was 64.8MB in the beginning and 70.2MB in the end (delta: -5.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:22:23,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:22:23,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:22:23,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:22:23,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:22:23,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:22:23,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:22:23,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:22:23,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:22:23,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:22:23,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:22:23,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:22:23,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:22:23,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:22:23,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:22:23,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:22:23,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:22:23,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:22:23,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:22:23,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:22:23,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:22:23,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:22:23,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:22:23,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:22:23,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:22:23,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:22:23,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:22:23,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:22:23,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:22:23,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:22:23,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:22:23,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:22:23,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:22:23,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:22:23,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:22:23,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:22:23,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:22:23,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:22:23,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:22:23,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:22:23,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:22:23,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:22:23,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:22:23,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:22:23,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:22:23,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:22:23,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:22:23,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:22:23,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:22:23,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:22:23,545 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:22:23,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:22:23,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:22:23,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:22:23,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:22:23,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:22:23,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:22:23,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:22:23,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:22:23,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:22:23,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:22:23,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:22:23,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:22:23,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:22:23,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:22:23,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:22:23,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:22:23,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:22:23,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:22:23,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:22:23,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:22:23,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:22:23,550 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:22:23,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:22:23,550 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:22:23,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:22:23,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:22:23,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:22:23,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:22:23,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-12-15 10:22:23,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:22:23,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:22:23,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:22:23,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:22:23,842 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:22:23,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-12-15 10:22:23,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4bbc81f/1ec1a7c6a6c14c8da2870bccead55f3e/FLAG5a4624d8d [2021-12-15 10:22:24,386 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:22:24,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-12-15 10:22:24,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4bbc81f/1ec1a7c6a6c14c8da2870bccead55f3e/FLAG5a4624d8d [2021-12-15 10:22:24,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4bbc81f/1ec1a7c6a6c14c8da2870bccead55f3e [2021-12-15 10:22:24,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:22:24,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:22:24,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:22:24,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:22:24,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:22:24,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:22:24" (1/1) ... [2021-12-15 10:22:24,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c23b122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:24, skipping insertion in model container [2021-12-15 10:22:24,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:22:24" (1/1) ... [2021-12-15 10:22:24,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:22:24,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:22:25,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-12-15 10:22:25,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-12-15 10:22:25,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:22:25,287 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:22:25,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-12-15 10:22:25,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-12-15 10:22:25,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:22:25,452 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:22:25,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25 WrapperNode [2021-12-15 10:22:25,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:22:25,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:22:25,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:22:25,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:22:25,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,515 INFO L137 Inliner]: procedures = 461, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-12-15 10:22:25,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:22:25,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:22:25,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:22:25,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:22:25,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:22:25,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:22:25,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:22:25,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:22:25,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (1/1) ... [2021-12-15 10:22:25,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:22:25,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:22:25,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:22:25,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:22:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:22:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure roundingTest [2021-12-15 10:22:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure roundingTest [2021-12-15 10:22:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:22:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:22:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:22:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 10:22:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 10:22:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-12-15 10:22:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-12-15 10:22:25,728 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:22:25,729 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:22:25,849 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:22:25,853 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:22:25,853 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 10:22:25,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:22:25 BoogieIcfgContainer [2021-12-15 10:22:25,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:22:25,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:22:25,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:22:25,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:22:25,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:22:24" (1/3) ... [2021-12-15 10:22:25,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2761f81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:22:25, skipping insertion in model container [2021-12-15 10:22:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:22:25" (2/3) ... [2021-12-15 10:22:25,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2761f81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:22:25, skipping insertion in model container [2021-12-15 10:22:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:22:25" (3/3) ... [2021-12-15 10:22:25,870 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2021-12-15 10:22:25,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:22:25,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 10:22:25,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:22:25,914 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:22:25,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 10:22:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 10:22:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:22:25,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:22:25,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:22:25,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:22:25,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:22:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1145250574, now seen corresponding path program 1 times [2021-12-15 10:22:25,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:22:25,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082734531] [2021-12-15 10:22:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:22:25,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:22:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:22:25,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:22:25,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:22:26,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:22:26,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:22:26,233 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:22:26,238 INFO L158 Benchmark]: Toolchain (without parser) took 1516.42ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 30.5MB in the beginning and 55.4MB in the end (delta: -24.9MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-12-15 10:22:26,238 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:22:26,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 30.3MB in the beginning and 47.2MB in the end (delta: -16.9MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-12-15 10:22:26,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.58ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:22:26,240 INFO L158 Benchmark]: Boogie Preprocessor took 43.56ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 43.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:22:26,242 INFO L158 Benchmark]: RCFGBuilder took 294.53ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 33.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:22:26,243 INFO L158 Benchmark]: TraceAbstraction took 379.05ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 33.3MB in the beginning and 55.4MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:22:26,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 30.3MB in the beginning and 47.2MB in the end (delta: -16.9MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.58ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.56ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 43.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.53ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 33.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 379.05ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 33.3MB in the beginning and 55.4MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:22:26,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable