./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.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 fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ...................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.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 fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:17,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:17,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:17,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:17,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:17,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:17,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:17,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:17,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:17,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:17,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:17,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:17,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:17,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:17,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:17,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:17,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:17,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:17,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:17,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:17,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:17,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:17,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:17,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:17,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:17,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:17,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:17,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:17,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:17,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:17,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:17,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:17,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:17,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:17,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:17,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:17,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:17,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:17,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:17,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:17,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:17,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:35:17,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:17,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:17,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:17,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:17,711 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:17,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:17,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:17,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:35:17,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:17,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:17,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:17,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:17,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:17,714 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:17,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:17,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:17,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:17,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:17,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:17,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:17,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:17,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:17,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:17,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:17,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:17,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:35:17,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:35:17,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:17,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:17,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-25 21:35:18,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:18,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:18,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:18,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:18,142 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:18,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-25 21:35:18,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3a36bac/48cc2fcc2a614629bf472699c3b67ad3/FLAGacf014b44 [2020-10-25 21:35:19,000 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:19,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-25 21:35:19,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3a36bac/48cc2fcc2a614629bf472699c3b67ad3/FLAGacf014b44 [2020-10-25 21:35:19,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3a36bac/48cc2fcc2a614629bf472699c3b67ad3 [2020-10-25 21:35:19,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:19,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:19,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:19,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:19,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:19,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:19" (1/1) ... [2020-10-25 21:35:19,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8461240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:19, skipping insertion in model container [2020-10-25 21:35:19,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:19" (1/1) ... [2020-10-25 21:35:19,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:19,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:19,833 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) 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:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-25 21:35:19,845 INFO L168 Benchmark]: Toolchain (without parser) took 658.39 ms. Allocated memory is still 52.4 MB. Free memory was 27.7 MB in the beginning and 28.6 MB in the end (delta: -912.4 kB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:19,850 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:19,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.25 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 28.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:19,856 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 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.25 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 28.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:22,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:22,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:22,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:22,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:22,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:22,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:22,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:22,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:22,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:22,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:22,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:22,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:22,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:22,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:22,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:22,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:22,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:22,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:22,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:22,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:22,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:22,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:22,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:22,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:22,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:22,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:22,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:22,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:22,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:22,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:22,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:22,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:22,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:22,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:22,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:22,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:22,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:22,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:22,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:22,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:22,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:35:22,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:22,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:22,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:22,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:22,516 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:22,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:22,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:22,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:22,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:22,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:22,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:22,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:22,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:35:22,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:35:22,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:22,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:22,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:22,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:22,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:22,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:22,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:22,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:22,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:22,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:22,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:22,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:22,523 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:35:22,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:35:22,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:22,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:22,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:35:22,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-25 21:35:22,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:23,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:23,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:23,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:23,039 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:23,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-25 21:35:23,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4138507ce/ffa9155e4a5c4e82a3a089d6ff8d2753/FLAGa865600f0 [2020-10-25 21:35:23,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:23,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-25 21:35:23,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4138507ce/ffa9155e4a5c4e82a3a089d6ff8d2753/FLAGa865600f0 [2020-10-25 21:35:24,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4138507ce/ffa9155e4a5c4e82a3a089d6ff8d2753 [2020-10-25 21:35:24,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:24,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:24,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:24,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:24,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:24,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:24" (1/1) ... [2020-10-25 21:35:24,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7348a880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:24, skipping insertion in model container [2020-10-25 21:35:24,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:24" (1/1) ... [2020-10-25 21:35:24,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:24,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:25,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:25,212 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:25,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:25,738 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:25,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25 WrapperNode [2020-10-25 21:35:25,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:25,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:25,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:25,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:25,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:25,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:25,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:25,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:25,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... [2020-10-25 21:35:25,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:25,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:25,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:25,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:25,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:35:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:25,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:31,590 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:31,590 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-25 21:35:31,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:31 BoogieIcfgContainer [2020-10-25 21:35:31,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:31,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:31,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:31,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:31,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:24" (1/3) ... [2020-10-25 21:35:31,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46051c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:31, skipping insertion in model container [2020-10-25 21:35:31,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:25" (2/3) ... [2020-10-25 21:35:31,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46051c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:31, skipping insertion in model container [2020-10-25 21:35:31,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:31" (3/3) ... [2020-10-25 21:35:31,602 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-10-25 21:35:31,616 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:31,622 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-25 21:35:31,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-25 21:35:31,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:31,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:31,669 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:31,669 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:31,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:31,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:31,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:31,670 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-25 21:35:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-25 21:35:31,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:31,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-25 21:35:31,696 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:31,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:31,704 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-25 21:35:31,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:31,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188660544] [2020-10-25 21:35:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:31,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 21:35:31,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:31,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:31,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:31,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188660544] [2020-10-25 21:35:31,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:31,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:35:31,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901874187] [2020-10-25 21:35:31,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:35:31,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:35:31,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:35:31,965 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-25 21:35:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:35:36,056 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2020-10-25 21:35:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:35:36,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-25 21:35:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:35:36,100 INFO L225 Difference]: With dead ends: 132 [2020-10-25 21:35:36,100 INFO L226 Difference]: Without dead ends: 54 [2020-10-25 21:35:36,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:35:36,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-25 21:35:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-25 21:35:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-25 21:35:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2020-10-25 21:35:36,143 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 5 [2020-10-25 21:35:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:35:36,143 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2020-10-25 21:35:36,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:35:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-10-25 21:35:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-25 21:35:36,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:36,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:35:36,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:35:36,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:36,348 INFO L82 PathProgramCache]: Analyzing trace with hash 442954858, now seen corresponding path program 1 times [2020-10-25 21:35:36,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:36,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253117734] [2020-10-25 21:35:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:36,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-25 21:35:36,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:36,796 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-10-25 21:35:36,814 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-25 21:35:36,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 21:35:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:36,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:36,954 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,956 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,961 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,964 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,974 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,975 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,978 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,981 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,984 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,986 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,990 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,991 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,994 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:36,994 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:36,998 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-25 21:35:36,999 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:37,005 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:37,006 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:37,010 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:37,010 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:37,012 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-25 21:35:37,012 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:37,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253117734] [2020-10-25 21:35:37,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:37,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:35:37,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875363548] [2020-10-25 21:35:37,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:35:37,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:37,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:35:37,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:35:37,093 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand 8 states. [2020-10-25 21:35:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:35:43,336 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2020-10-25 21:35:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:35:43,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-10-25 21:35:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:35:43,355 INFO L225 Difference]: With dead ends: 54 [2020-10-25 21:35:43,355 INFO L226 Difference]: Without dead ends: 45 [2020-10-25 21:35:43,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-25 21:35:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-25 21:35:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-25 21:35:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-25 21:35:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 44 transitions. [2020-10-25 21:35:43,366 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 44 transitions. Word has length 8 [2020-10-25 21:35:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:35:43,366 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 44 transitions. [2020-10-25 21:35:43,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:35:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2020-10-25 21:35:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:35:43,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:43,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:35:43,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:35:43,582 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:43,586 INFO L82 PathProgramCache]: Analyzing trace with hash 847036503, now seen corresponding path program 1 times [2020-10-25 21:35:43,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:43,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021806076] [2020-10-25 21:35:43,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:43,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 21:35:43,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:43,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:43,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021806076] [2020-10-25 21:35:43,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:43,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:35:43,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509918358] [2020-10-25 21:35:43,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:35:43,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:43,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:35:43,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:35:43,729 INFO L87 Difference]: Start difference. First operand 45 states and 44 transitions. Second operand 4 states. [2020-10-25 21:35:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:35:48,637 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2020-10-25 21:35:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:35:48,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-25 21:35:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:35:48,650 INFO L225 Difference]: With dead ends: 45 [2020-10-25 21:35:48,650 INFO L226 Difference]: Without dead ends: 39 [2020-10-25 21:35:48,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:35:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-25 21:35:48,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-25 21:35:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-25 21:35:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions. [2020-10-25 21:35:48,657 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 9 [2020-10-25 21:35:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:35:48,658 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions. [2020-10-25 21:35:48,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:35:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2020-10-25 21:35:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:35:48,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:48,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:35:48,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:35:48,867 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:48,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1454326907, now seen corresponding path program 1 times [2020-10-25 21:35:48,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:48,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866474344] [2020-10-25 21:35:48,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:49,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-25 21:35:49,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:49,457 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 17 [2020-10-25 21:35:49,461 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-25 21:35:49,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 21:35:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:49,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:50,853 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-25 21:35:52,810 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 11 [2020-10-25 21:35:52,825 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,826 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,832 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,832 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,834 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,835 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,839 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,841 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,845 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,846 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,850 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,852 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,854 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-25 21:35:52,855 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,857 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-25 21:35:52,857 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,859 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-25 21:35:52,860 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,862 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:35:52,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 21:35:52,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 21:35:52,867 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 21:35:52,868 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 21:35:56,209 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-10-25 21:35:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:56,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866474344] [2020-10-25 21:35:56,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:56,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:35:56,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880487919] [2020-10-25 21:35:56,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:35:56,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:56,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:35:56,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:35:56,274 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand 8 states. [2020-10-25 21:36:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:02,066 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2020-10-25 21:36:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:36:02,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-25 21:36:02,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:02,078 INFO L225 Difference]: With dead ends: 39 [2020-10-25 21:36:02,078 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 21:36:02,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-25 21:36:02,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 21:36:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 21:36:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 21:36:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2020-10-25 21:36:02,084 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 12 [2020-10-25 21:36:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:02,084 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2020-10-25 21:36:02,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:36:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-10-25 21:36:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:36:02,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:36:02,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:36:02,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 21:36:02,298 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:36:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:36:02,299 INFO L82 PathProgramCache]: Analyzing trace with hash 2134798987, now seen corresponding path program 1 times [2020-10-25 21:36:02,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:36:02,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738317203] [2020-10-25 21:36:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-25 21:36:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:36:02,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 21:36:02,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:36:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:02,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:36:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:02,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738317203] [2020-10-25 21:36:02,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:36:02,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:36:02,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001572705] [2020-10-25 21:36:02,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:36:02,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:36:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:36:02,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:02,442 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 4 states. [2020-10-25 21:36:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:06,459 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-10-25 21:36:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:36:06,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-25 21:36:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:06,469 INFO L225 Difference]: With dead ends: 36 [2020-10-25 21:36:06,469 INFO L226 Difference]: Without dead ends: 30 [2020-10-25 21:36:06,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-25 21:36:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-25 21:36:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-25 21:36:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2020-10-25 21:36:06,475 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 13 [2020-10-25 21:36:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:06,476 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2020-10-25 21:36:06,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:36:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-10-25 21:36:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 21:36:06,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:36:06,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:36:06,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-25 21:36:06,680 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:36:06,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:36:06,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1441729926, now seen corresponding path program 1 times [2020-10-25 21:36:06,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:36:06,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942371847] [2020-10-25 21:36:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-25 21:36:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:36:06,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 21:36:06,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:36:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:06,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:36:07,262 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-10-25 21:36:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:07,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942371847] [2020-10-25 21:36:07,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:36:07,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:36:07,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962329429] [2020-10-25 21:36:07,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:36:07,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:36:07,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:36:07,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:07,275 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 4 states. [2020-10-25 21:36:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:11,443 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-10-25 21:36:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:36:11,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-25 21:36:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:11,456 INFO L225 Difference]: With dead ends: 30 [2020-10-25 21:36:11,456 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 21:36:11,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 21:36:11,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-25 21:36:11,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 21:36:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-10-25 21:36:11,460 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2020-10-25 21:36:11,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:11,460 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-10-25 21:36:11,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:36:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-10-25 21:36:11,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 21:36:11,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:36:11,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:36:11,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-25 21:36:11,662 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:36:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:36:11,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1743616871, now seen corresponding path program 1 times [2020-10-25 21:36:11,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:36:11,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371534546] [2020-10-25 21:36:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-25 21:36:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:36:11,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 21:36:11,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:36:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:11,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:36:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:12,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371534546] [2020-10-25 21:36:12,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:36:12,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:36:12,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286539629] [2020-10-25 21:36:12,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:36:12,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:36:12,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:36:12,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:12,155 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 4 states. [2020-10-25 21:36:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:15,681 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-10-25 21:36:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:36:15,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-25 21:36:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:15,691 INFO L225 Difference]: With dead ends: 27 [2020-10-25 21:36:15,691 INFO L226 Difference]: Without dead ends: 24 [2020-10-25 21:36:15,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:36:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-25 21:36:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-25 21:36:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-25 21:36:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-10-25 21:36:15,695 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 16 [2020-10-25 21:36:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:15,695 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-10-25 21:36:15,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:36:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-10-25 21:36:15,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 21:36:15,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:36:15,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:36:15,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-25 21:36:15,904 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:36:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:36:15,905 INFO L82 PathProgramCache]: Analyzing trace with hash -420200872, now seen corresponding path program 1 times [2020-10-25 21:36:15,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:36:15,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095731761] [2020-10-25 21:36:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-25 21:36:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:36:16,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-25 21:36:16,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:36:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:16,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:36:18,245 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from false [2020-10-25 21:36:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:19,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095731761] [2020-10-25 21:36:19,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:36:19,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-25 21:36:19,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441033542] [2020-10-25 21:36:19,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 21:36:19,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:36:19,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 21:36:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=7, Unknown=1, NotChecked=4, Total=20 [2020-10-25 21:36:19,028 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 5 states. [2020-10-25 21:36:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:24,289 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-10-25 21:36:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:36:24,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-25 21:36:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:24,300 INFO L225 Difference]: With dead ends: 24 [2020-10-25 21:36:24,300 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:36:24,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=8, Invalid=7, Unknown=1, NotChecked=4, Total=20 [2020-10-25 21:36:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:36:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:36:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:36:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:36:24,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-25 21:36:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:24,302 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:36:24,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 21:36:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:36:24,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:36:24,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-25 21:36:24,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point L2-1(line 391) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point L2-2(line 402) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point L399-1(line 399) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:36:24,550 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 21:36:24,551 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-25 21:36:24,551 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:36:24,551 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point L384-2(line 384) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point L402-1(line 402) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L270 CegarLoopResult]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point L387-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,552 INFO L274 CegarLoopResult]: For program point L388-1(line 388) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point L391-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point L392-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,553 INFO L274 CegarLoopResult]: For program point L393-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L394-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L395-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L396-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,554 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-16(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-18(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-19(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-20(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-22(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-23(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-24(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-26(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-27(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,555 INFO L274 CegarLoopResult]: For program point L16-28(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-30(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-31(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-32(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-34(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-35(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-36(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L397-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-38(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-39(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,556 INFO L274 CegarLoopResult]: For program point L16-40(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-42(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-43(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-44(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-46(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-47(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,557 INFO L274 CegarLoopResult]: For program point L16-48(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,558 INFO L274 CegarLoopResult]: For program point L16-50(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,558 INFO L274 CegarLoopResult]: For program point L16-51(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,558 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-25 21:36:24,558 INFO L274 CegarLoopResult]: For program point L398-1(lines 379 404) no Hoare annotation was computed. [2020-10-25 21:36:24,558 INFO L274 CegarLoopResult]: For program point L2(line 387) no Hoare annotation was computed. [2020-10-25 21:36:24,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:36:24,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:36:24,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:36:24 BoogieIcfgContainer [2020-10-25 21:36:24,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:36:24,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:36:24,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:36:24,577 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:36:24,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:31" (3/4) ... [2020-10-25 21:36:24,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:36:24,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 21:36:24,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 21:36:24,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:36:24,597 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:36:24,628 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2020-10-25 21:36:24,670 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:36:24,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:36:24,672 INFO L168 Benchmark]: Toolchain (without parser) took 60582.24 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 21.7 MB in the beginning and 22.7 MB in the end (delta: -982.1 kB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,673 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 37.7 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 19.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:36:24,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1644.08 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 25.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.34 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 23.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,675 INFO L168 Benchmark]: Boogie Preprocessor took 35.78 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 21.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,676 INFO L168 Benchmark]: RCFGBuilder took 5711.51 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 25.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,676 INFO L168 Benchmark]: TraceAbstraction took 52981.55 ms. Allocated memory is still 56.6 MB. Free memory was 25.2 MB in the beginning and 27.3 MB in the end (delta: -2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:36:24,677 INFO L168 Benchmark]: Witness Printer took 94.28 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 22.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:24,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 37.7 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 19.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1644.08 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 25.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.34 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 23.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.78 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 21.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5711.51 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 25.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 52981.55 ms. Allocated memory is still 56.6 MB. Free memory was 25.2 MB in the beginning and 27.3 MB in the end (delta: -2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 94.28 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 22.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - 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 - 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 - 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 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2020-10-25 21:36:24,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:36:24,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 52.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 298 SDslu, 107 SDs, 0 SdLazy, 195 SolverSat, 7 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 33.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 151 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 178 ConstructedInterpolants, 27 QuantifiedInterpolants, 19233 SizeOfPredicates, 34 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...