./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 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 ../../../trunk/examples/svcomp/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 ../../../trunk/examples/svcomp/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-cbb939d [2020-11-23 15:12:28,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 15:12:28,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 15:12:28,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 15:12:28,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 15:12:28,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 15:12:28,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 15:12:28,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 15:12:28,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 15:12:28,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 15:12:28,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 15:12:28,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 15:12:28,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 15:12:28,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 15:12:28,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 15:12:28,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 15:12:28,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 15:12:28,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 15:12:28,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 15:12:28,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 15:12:28,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 15:12:28,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 15:12:28,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 15:12:28,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 15:12:28,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 15:12:28,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 15:12:28,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 15:12:28,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 15:12:28,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 15:12:28,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 15:12:28,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 15:12:28,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 15:12:28,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 15:12:28,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 15:12:28,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 15:12:28,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 15:12:28,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 15:12:28,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 15:12:28,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 15:12:28,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 15:12:28,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 15:12:28,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 15:12:28,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 15:12:28,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 15:12:28,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 15:12:28,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 15:12:28,982 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 15:12:28,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 15:12:28,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 15:12:28,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 15:12:28,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 15:12:28,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 15:12:28,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 15:12:28,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 15:12:28,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 15:12:28,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 15:12:28,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 15:12:28,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 15:12:28,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 15:12:28,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 15:12:28,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 15:12:28,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 15:12:28,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 15:12:28,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 15:12:28,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 15:12:28,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 15:12:28,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 15:12:28,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 15:12:28,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 15:12:28,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 15:12:28,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 15:12:28,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-11-23 15:12:29,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 15:12:29,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 15:12:29,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 15:12:29,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 15:12:29,416 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 15:12:29,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-rounding1.i [2020-11-23 15:12:29,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af49415df/5e00aedcadc24873a48033dfe92b59f7/FLAG55d85a2ae [2020-11-23 15:12:30,181 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 15:12:30,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-rounding1.i [2020-11-23 15:12:30,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af49415df/5e00aedcadc24873a48033dfe92b59f7/FLAG55d85a2ae [2020-11-23 15:12:30,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af49415df/5e00aedcadc24873a48033dfe92b59f7 [2020-11-23 15:12:30,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 15:12:30,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 15:12:30,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 15:12:30,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 15:12:30,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 15:12:30,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:30" (1/1) ... [2020-11-23 15:12:30,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b167853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:30, skipping insertion in model container [2020-11-23 15:12:30,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:30" (1/1) ... [2020-11-23 15:12:30,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 15:12:30,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 15:12:31,347 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) [2020-11-23 15:12:31,357 INFO L168 Benchmark]: Toolchain (without parser) took 886.26 ms. Allocated memory is still 56.6 MB. Free memory was 32.1 MB in the beginning and 32.3 MB in the end (delta: -179.7 kB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-23 15:12:31,359 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 15:12:31,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.81 ms. Allocated memory is still 56.6 MB. Free memory was 31.5 MB in the beginning and 32.3 MB in the end (delta: -817.8 kB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-23 15:12:31,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 872.81 ms. Allocated memory is still 56.6 MB. Free memory was 31.5 MB in the beginning and 32.3 MB in the end (delta: -817.8 kB). Peak memory consumption was 6.0 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-cbb939d [2020-11-23 15:12:33,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 15:12:33,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 15:12:33,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 15:12:33,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 15:12:33,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 15:12:33,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 15:12:33,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 15:12:33,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 15:12:33,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 15:12:33,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 15:12:33,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 15:12:33,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 15:12:33,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 15:12:33,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 15:12:33,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 15:12:33,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 15:12:33,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 15:12:33,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 15:12:33,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 15:12:33,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 15:12:33,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 15:12:33,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 15:12:34,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 15:12:34,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 15:12:34,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 15:12:34,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 15:12:34,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 15:12:34,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 15:12:34,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 15:12:34,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 15:12:34,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 15:12:34,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 15:12:34,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 15:12:34,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 15:12:34,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 15:12:34,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 15:12:34,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 15:12:34,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 15:12:34,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 15:12:34,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 15:12:34,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 15:12:34,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 15:12:34,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 15:12:34,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 15:12:34,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 15:12:34,063 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 15:12:34,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 15:12:34,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 15:12:34,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 15:12:34,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 15:12:34,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 15:12:34,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 15:12:34,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 15:12:34,065 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 15:12:34,065 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 15:12:34,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 15:12:34,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 15:12:34,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 15:12:34,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 15:12:34,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 15:12:34,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 15:12:34,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 15:12:34,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 15:12:34,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 15:12:34,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 15:12:34,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 15:12:34,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 15:12:34,068 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 15:12:34,068 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 15:12:34,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 15:12:34,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 15:12:34,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 15:12:34,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-11-23 15:12:34,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 15:12:34,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 15:12:34,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 15:12:34,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 15:12:34,585 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 15:12:34,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-rounding1.i [2020-11-23 15:12:34,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fbe7f85/cd1250830e3c4127b2f8e15b72e7d72e/FLAG514bbb93d [2020-11-23 15:12:35,431 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 15:12:35,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-rounding1.i [2020-11-23 15:12:35,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fbe7f85/cd1250830e3c4127b2f8e15b72e7d72e/FLAG514bbb93d [2020-11-23 15:12:35,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fbe7f85/cd1250830e3c4127b2f8e15b72e7d72e [2020-11-23 15:12:35,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 15:12:35,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 15:12:35,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 15:12:35,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 15:12:35,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 15:12:35,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:35" (1/1) ... [2020-11-23 15:12:35,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c3dc66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:35, skipping insertion in model container [2020-11-23 15:12:35,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:35" (1/1) ... [2020-11-23 15:12:35,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 15:12:35,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 15:12:36,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 15:12:36,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 15:12:36,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 15:12:37,172 INFO L208 MainTranslator]: Completed translation [2020-11-23 15:12:37,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37 WrapperNode [2020-11-23 15:12:37,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 15:12:37,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 15:12:37,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 15:12:37,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 15:12:37,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 15:12:37,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 15:12:37,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 15:12:37,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 15:12:37,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (1/1) ... [2020-11-23 15:12:37,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 15:12:37,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 15:12:37,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 15:12:37,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 15:12:37,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (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 [2020-11-23 15:12:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 15:12:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 15:12:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 15:12:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 15:12:38,028 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 15:12:38,028 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-23 15:12:38,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:38 BoogieIcfgContainer [2020-11-23 15:12:38,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 15:12:38,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 15:12:38,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 15:12:38,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 15:12:38,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:12:35" (1/3) ... [2020-11-23 15:12:38,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144c8afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:38, skipping insertion in model container [2020-11-23 15:12:38,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:37" (2/3) ... [2020-11-23 15:12:38,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144c8afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:38, skipping insertion in model container [2020-11-23 15:12:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:38" (3/3) ... [2020-11-23 15:12:38,039 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-11-23 15:12:38,067 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 15:12:38,072 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-23 15:12:38,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-23 15:12:38,117 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 15:12:38,117 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 15:12:38,117 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 15:12:38,117 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 15:12:38,117 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 15:12:38,118 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 15:12:38,118 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 15:12:38,118 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 15:12:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-11-23 15:12:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-23 15:12:38,142 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:12:38,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-23 15:12:38,144 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:12:38,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:12:38,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1805428198, now seen corresponding path program 1 times [2020-11-23 15:12:38,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:12:38,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537995309] [2020-11-23 15:12:38,167 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 [2020-11-23 15:12:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:12:38,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-23 15:12:38,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:12:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:38,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:12:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:38,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537995309] [2020-11-23 15:12:38,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:12:38,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-23 15:12:38,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845827403] [2020-11-23 15:12:38,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-23 15:12:38,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:12:38,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-23 15:12:38,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-23 15:12:38,408 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2020-11-23 15:12:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:12:38,546 INFO L93 Difference]: Finished difference Result 113 states and 162 transitions. [2020-11-23 15:12:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-23 15:12:38,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-23 15:12:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:12:38,559 INFO L225 Difference]: With dead ends: 113 [2020-11-23 15:12:38,560 INFO L226 Difference]: Without dead ends: 56 [2020-11-23 15:12:38,563 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 [2020-11-23 15:12:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-23 15:12:38,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 41. [2020-11-23 15:12:38,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-23 15:12:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-11-23 15:12:38,608 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 7 [2020-11-23 15:12:38,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:12:38,608 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-11-23 15:12:38,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-23 15:12:38,608 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-11-23 15:12:38,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-23 15:12:38,609 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:12:38,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 15:12:38,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 15:12:38,827 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:12:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:12:38,829 INFO L82 PathProgramCache]: Analyzing trace with hash 177934122, now seen corresponding path program 1 times [2020-11-23 15:12:38,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:12:38,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732474094] [2020-11-23 15:12:38,831 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 [2020-11-23 15:12:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:12:38,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-23 15:12:38,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:12:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:39,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:12:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:40,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732474094] [2020-11-23 15:12:40,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:12:40,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-23 15:12:40,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650456704] [2020-11-23 15:12:40,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-23 15:12:40,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:12:40,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-23 15:12:40,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-23 15:12:40,225 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2020-11-23 15:12:40,982 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-23 15:12:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:12:42,676 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2020-11-23 15:12:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-23 15:12:42,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-11-23 15:12:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:12:42,678 INFO L225 Difference]: With dead ends: 66 [2020-11-23 15:12:42,679 INFO L226 Difference]: Without dead ends: 63 [2020-11-23 15:12:42,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-23 15:12:42,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-23 15:12:42,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 38. [2020-11-23 15:12:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-23 15:12:42,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-11-23 15:12:42,688 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 8 [2020-11-23 15:12:42,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:12:42,688 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-11-23 15:12:42,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-23 15:12:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-11-23 15:12:42,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-23 15:12:42,689 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:12:42,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 15:12:42,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 15:12:42,903 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:12:42,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:12:42,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1941724699, now seen corresponding path program 1 times [2020-11-23 15:12:42,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:12:42,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448091736] [2020-11-23 15:12:42,906 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 [2020-11-23 15:12:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:12:43,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-23 15:12:43,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:12:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:43,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:12:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:43,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448091736] [2020-11-23 15:12:43,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:12:43,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-23 15:12:43,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052953589] [2020-11-23 15:12:43,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-23 15:12:43,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:12:43,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-23 15:12:43,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-23 15:12:43,048 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 4 states. [2020-11-23 15:12:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:12:43,106 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2020-11-23 15:12:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-23 15:12:43,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-23 15:12:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:12:43,108 INFO L225 Difference]: With dead ends: 65 [2020-11-23 15:12:43,108 INFO L226 Difference]: Without dead ends: 38 [2020-11-23 15:12:43,111 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 [2020-11-23 15:12:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-23 15:12:43,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-23 15:12:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-23 15:12:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-11-23 15:12:43,121 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 13 [2020-11-23 15:12:43,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:12:43,121 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-11-23 15:12:43,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-23 15:12:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-11-23 15:12:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-23 15:12:43,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:12:43,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 15:12:43,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-23 15:12:43,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:12:43,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:12:43,324 INFO L82 PathProgramCache]: Analyzing trace with hash -745441216, now seen corresponding path program 1 times [2020-11-23 15:12:43,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:12:43,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064607312] [2020-11-23 15:12:43,325 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 [2020-11-23 15:12:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:12:43,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-23 15:12:43,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:12:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:43,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:12:44,915 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-23 15:12:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:44,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064607312] [2020-11-23 15:12:44,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:12:44,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-23 15:12:44,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046379060] [2020-11-23 15:12:44,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-23 15:12:44,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:12:44,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-23 15:12:44,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-23 15:12:44,932 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 8 states. [2020-11-23 15:12:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:12:46,021 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-11-23 15:12:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-23 15:12:46,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-23 15:12:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:12:46,028 INFO L225 Difference]: With dead ends: 38 [2020-11-23 15:12:46,028 INFO L226 Difference]: Without dead ends: 35 [2020-11-23 15:12:46,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-23 15:12:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-23 15:12:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-23 15:12:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-23 15:12:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-11-23 15:12:46,036 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 15 [2020-11-23 15:12:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:12:46,036 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-11-23 15:12:46,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-23 15:12:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-11-23 15:12:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-23 15:12:46,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:12:46,037 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] [2020-11-23 15:12:46,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-23 15:12:46,243 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:12:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:12:46,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1207633360, now seen corresponding path program 1 times [2020-11-23 15:12:46,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:12:46,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260355570] [2020-11-23 15:12:46,245 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 [2020-11-23 15:12:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:12:46,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-23 15:12:46,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:12:46,449 INFO L387 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-23 15:12:46,450 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-23 15:12:46,475 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-23 15:12:46,476 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-23 15:12:46,640 INFO L387 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-11-23 15:12:46,641 INFO L615 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-23 15:12:47,726 WARN L194 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-23 15:12:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:47,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:12:52,596 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-23 15:12:52,606 INFO L387 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-23 15:12:52,606 INFO L615 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-23 15:12:53,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:12:53,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260355570] [2020-11-23 15:12:53,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:12:53,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2020-11-23 15:12:53,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667738857] [2020-11-23 15:12:53,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-23 15:12:53,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:12:53,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-23 15:12:53,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-11-23 15:12:53,337 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 15 states. [2020-11-23 15:12:54,828 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-23 15:12:57,104 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-11-23 15:12:57,838 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-11-23 15:12:58,281 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2020-11-23 15:12:58,671 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-11-23 15:12:58,939 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-23 15:13:00,273 WARN L194 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-11-23 15:13:00,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:13:00,615 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-11-23 15:13:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-23 15:13:00,616 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-11-23 15:13:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:13:00,617 INFO L225 Difference]: With dead ends: 35 [2020-11-23 15:13:00,617 INFO L226 Difference]: Without dead ends: 32 [2020-11-23 15:13:00,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-11-23 15:13:00,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-23 15:13:00,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-23 15:13:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-23 15:13:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-11-23 15:13:00,624 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 24 [2020-11-23 15:13:00,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:13:00,624 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-11-23 15:13:00,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-23 15:13:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-11-23 15:13:00,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-23 15:13:00,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 15:13:00,626 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] [2020-11-23 15:13:00,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-23 15:13:00,831 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 15:13:00,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 15:13:00,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2144167093, now seen corresponding path program 1 times [2020-11-23 15:13:00,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 15:13:00,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809784678] [2020-11-23 15:13:00,834 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 [2020-11-23 15:13:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 15:13:01,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-23 15:13:01,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 15:13:01,072 INFO L387 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-23 15:13:01,072 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-23 15:13:01,099 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-23 15:13:01,100 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-23 15:13:01,266 INFO L387 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-11-23 15:13:01,267 INFO L615 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-23 15:13:01,906 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-23 15:13:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:13:01,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 15:13:04,449 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-23 15:13:06,032 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-23 15:13:07,790 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-23 15:13:07,797 INFO L387 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-23 15:13:07,798 INFO L615 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-23 15:13:10,129 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-23 15:13:11,765 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-23 15:13:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 15:13:11,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809784678] [2020-11-23 15:13:11,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 15:13:11,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-11-23 15:13:11,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40954922] [2020-11-23 15:13:11,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-23 15:13:11,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 15:13:11,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-23 15:13:11,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-11-23 15:13:11,816 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 16 states. [2020-11-23 15:13:15,469 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-23 15:13:17,512 WARN L194 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-23 15:13:19,353 WARN L194 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-11-23 15:13:20,957 WARN L194 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-23 15:13:21,973 WARN L194 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-11-23 15:13:22,402 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-23 15:13:22,737 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-11-23 15:13:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 15:13:22,903 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-11-23 15:13:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-23 15:13:22,909 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2020-11-23 15:13:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 15:13:22,909 INFO L225 Difference]: With dead ends: 32 [2020-11-23 15:13:22,909 INFO L226 Difference]: Without dead ends: 0 [2020-11-23 15:13:22,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2020-11-23 15:13:22,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-23 15:13:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-23 15:13:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-23 15:13:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-23 15:13:22,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-11-23 15:13:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 15:13:22,911 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-23 15:13:22,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-23 15:13:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-23 15:13:22,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-23 15:13:23,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-23 15:13:23,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-23 15:13:24,091 WARN L194 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-11-23 15:13:24,119 INFO L262 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,120 INFO L262 CegarLoopResult]: For program point L1110(line 1110) no Hoare annotation was computed. [2020-11-23 15:13:24,121 INFO L258 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)))) [2020-11-23 15:13:24,121 INFO L262 CegarLoopResult]: For program point L1110-3(line 1110) no Hoare annotation was computed. [2020-11-23 15:13:24,121 INFO L258 CegarLoopResult]: At program point L1110-5(lines 1097 1113) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-11-23 15:13:24,125 INFO L258 CegarLoopResult]: At program point L1135(lines 1116 1136) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-11-23 15:13:24,125 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,125 INFO L262 CegarLoopResult]: For program point L1103(line 1103) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L1103-2(line 1103) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,126 INFO L262 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,127 INFO L262 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,127 INFO L262 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,129 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,130 INFO L262 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,131 INFO L262 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,132 INFO L262 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,133 INFO L262 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,134 INFO L262 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,136 INFO L262 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-23 15:13:24,137 INFO L262 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-11-23 15:13:24,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-23 15:13:24,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,189 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,189 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:13:24 BoogieIcfgContainer [2020-11-23 15:13:24,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 15:13:24,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 15:13:24,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 15:13:24,198 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 15:13:24,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:38" (3/4) ... [2020-11-23 15:13:24,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-23 15:13:24,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-11-23 15:13:24,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-11-23 15:13:24,223 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-23 15:13:24,223 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-23 15:13:24,260 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)) [2020-11-23 15:13:24,309 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 15:13:24,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 15:13:24,311 INFO L168 Benchmark]: Toolchain (without parser) took 48590.89 ms. Allocated memory was 44.0 MB in the beginning and 71.3 MB in the end (delta: 27.3 MB). Free memory was 28.8 MB in the beginning and 41.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,312 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 24.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 15:13:24,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1443.22 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.1 MB in the beginning and 17.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.67 ms. Allocated memory is still 54.5 MB. Free memory was 17.2 MB in the beginning and 14.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,313 INFO L168 Benchmark]: Boogie Preprocessor took 70.50 ms. Allocated memory is still 54.5 MB. Free memory was 14.2 MB in the beginning and 35.1 MB in the end (delta: -21.0 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,314 INFO L168 Benchmark]: RCFGBuilder took 669.96 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 14.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,314 INFO L168 Benchmark]: TraceAbstraction took 46164.86 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 14.1 MB in the beginning and 44.7 MB in the end (delta: -30.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,315 INFO L168 Benchmark]: Witness Printer took 112.23 ms. Allocated memory is still 71.3 MB. Free memory was 44.7 MB in the beginning and 41.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 15:13:24,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 24.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1443.22 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.1 MB in the beginning and 17.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.67 ms. Allocated memory is still 54.5 MB. Free memory was 17.2 MB in the beginning and 14.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.50 ms. Allocated memory is still 54.5 MB. Free memory was 14.2 MB in the beginning and 35.1 MB in the end (delta: -21.0 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 669.96 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 14.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46164.86 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 14.1 MB in the beginning and 44.7 MB in the end (delta: -30.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Witness Printer took 112.23 ms. Allocated memory is still 71.3 MB. Free memory was 44.7 MB in the beginning and 41.2 MB in the end (delta: 3.5 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 [2020-11-23 15:13:24,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-23 15:13:24,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-23 15:13:24,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-23 15:13:24,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 15:13:24,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,343 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 [2020-11-23 15:13:24,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1116]: Loop Invariant [2020-11-23 15:13:24,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-23 15:13:24,345 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: 44.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 438 SDslu, 297 SDs, 0 SdLazy, 355 SolverSat, 66 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 31.3s 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, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 136 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 20.6s 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...