./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float_lib1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 56771b04a43eece6453a051ac2b8a2fa87e54647 ...................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib1.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 56771b04a43eece6453a051ac2b8a2fa87e54647 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:49,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:49,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:49,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:49,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:49,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:49,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:49,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:49,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:49,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:49,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:49,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:49,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:49,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:49,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:49,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:49,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:49,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:49,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:49,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:49,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:49,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:49,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:49,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:49,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:49,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:49,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:49,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:49,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:49,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:49,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:49,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:49,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:49,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:49,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:49,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:49,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:49,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:49,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:49,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:49,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:49,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:16:49,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:49,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:49,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:49,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:49,930 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:49,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:49,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:49,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:16:49,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:49,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:49,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:49,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:49,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:49,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:49,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:49,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:49,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:49,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:49,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:49,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:49,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:49,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:49,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:49,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:49,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:49,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:16:49,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:16:49,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:49,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:49,942 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56771b04a43eece6453a051ac2b8a2fa87e54647 [2020-10-24 14:16:50,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:50,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:50,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:50,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:50,402 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:50,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib1.i [2020-10-24 14:16:50,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb268c60/38db580b460b4221add552f567862e0f/FLAG942b306eb [2020-10-24 14:16:51,233 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:51,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib1.i [2020-10-24 14:16:51,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb268c60/38db580b460b4221add552f567862e0f/FLAG942b306eb [2020-10-24 14:16:51,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bb268c60/38db580b460b4221add552f567862e0f [2020-10-24 14:16:51,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:51,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:51,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:51,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:51,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:51,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:51" (1/1) ... [2020-10-24 14:16:51,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c24a3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:51, skipping insertion in model container [2020-10-24 14:16:51,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:51" (1/1) ... [2020-10-24 14:16:51,423 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:51,490 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:52,097 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:847) 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:1400) 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:1079) 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:2341) 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:704) 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:2341) 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:2341) 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:1568) 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:1044) 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:1422) 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:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 14:16:52,104 INFO L168 Benchmark]: Toolchain (without parser) took 713.25 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:52,105 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:52,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.10 ms. Allocated memory is still 52.4 MB. Free memory was 32.9 MB in the beginning and 31.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:52,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.10 ms. Allocated memory is still 52.4 MB. Free memory was 32.9 MB in the beginning and 31.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 11.2 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:847) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:54,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:54,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:54,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:54,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:54,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:54,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:54,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:54,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:54,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:54,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:54,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:54,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:54,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:54,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:54,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:54,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:54,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:54,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:54,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:54,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:54,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:54,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:54,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:54,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:54,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:54,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:54,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:54,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:54,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:54,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:54,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:54,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:54,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:54,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:54,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:54,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:54,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:54,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:54,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:54,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:54,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:16:54,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:54,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:54,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:54,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:54,750 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:54,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:54,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:54,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:54,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:54,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:54,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:54,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:54,752 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:16:54,752 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:16:54,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:54,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:54,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:54,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:54,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:54,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:54,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:54,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:54,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:54,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:54,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:54,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:54,755 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:16:54,756 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:16:54,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:54,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:54,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:16:54,757 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56771b04a43eece6453a051ac2b8a2fa87e54647 [2020-10-24 14:16:55,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:55,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:55,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:55,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:55,217 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:55,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib1.i [2020-10-24 14:16:55,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70e02ddcb/76c81ebb1da64568b3d54c750f50631e/FLAG1b9b50330 [2020-10-24 14:16:56,097 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:56,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib1.i [2020-10-24 14:16:56,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70e02ddcb/76c81ebb1da64568b3d54c750f50631e/FLAG1b9b50330 [2020-10-24 14:16:56,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70e02ddcb/76c81ebb1da64568b3d54c750f50631e [2020-10-24 14:16:56,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:56,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:56,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:56,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:56,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:56,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:56" (1/1) ... [2020-10-24 14:16:56,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be3a856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:56, skipping insertion in model container [2020-10-24 14:16:56,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:56" (1/1) ... [2020-10-24 14:16:56,415 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:56,490 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:57,207 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:57,223 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:57,276 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:57,615 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:57,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57 WrapperNode [2020-10-24 14:16:57,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:57,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:57,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:57,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:57,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:57,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:57,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:57,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:57,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... [2020-10-24 14:16:57,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:57,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:57,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:57,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:57,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:16:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:16:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_LONGDOUBLE [2020-10-24 14:16:59,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:59,525 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 14:16:59,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:59 BoogieIcfgContainer [2020-10-24 14:16:59,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:59,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:59,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:59,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:59,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:56" (1/3) ... [2020-10-24 14:16:59,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63510e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:59, skipping insertion in model container [2020-10-24 14:16:59,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:57" (2/3) ... [2020-10-24 14:16:59,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63510e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:59, skipping insertion in model container [2020-10-24 14:16:59,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:59" (3/3) ... [2020-10-24 14:16:59,538 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib1.i [2020-10-24 14:16:59,551 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:59,557 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-24 14:16:59,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-24 14:16:59,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:59,595 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:59,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:59,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:59,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:59,596 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:59,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:59,596 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-24 14:16:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:16:59,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:59,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:16:59,617 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:59,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:59,624 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-24 14:16:59,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:59,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929684849] [2020-10-24 14:16:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:00,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 14:17:00,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:02,246 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-24 14:17:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:02,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:03,198 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 6 [2020-10-24 14:17:07,913 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-24 14:17:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:07,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929684849] [2020-10-24 14:17:07,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:07,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:17:07,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844431346] [2020-10-24 14:17:07,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:17:07,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:07,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:17:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-10-24 14:17:07,951 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 6 states. [2020-10-24 14:17:10,203 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 41 [2020-10-24 14:17:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:14,606 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-10-24 14:17:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:14,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-24 14:17:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:14,619 INFO L225 Difference]: With dead ends: 90 [2020-10-24 14:17:14,619 INFO L226 Difference]: Without dead ends: 38 [2020-10-24 14:17:14,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-10-24 14:17:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-24 14:17:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-24 14:17:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-24 14:17:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-10-24 14:17:14,657 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 5 [2020-10-24 14:17:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:14,657 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-10-24 14:17:14,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:17:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-10-24 14:17:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:17:14,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:14,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:14,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:17:14,872 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:14,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:14,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1815402225, now seen corresponding path program 1 times [2020-10-24 14:17:14,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:14,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220868698] [2020-10-24 14:17:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:15,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 14:17:15,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:16,442 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-24 14:17:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:16,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:16,907 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 6 [2020-10-24 14:17:20,462 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification that was a NOOP. DAG size: 38 [2020-10-24 14:17:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:20,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220868698] [2020-10-24 14:17:20,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:20,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:17:20,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140264583] [2020-10-24 14:17:20,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:17:20,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:20,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:17:20,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:17:20,504 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 6 states. [2020-10-24 14:17:22,088 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-10-24 14:17:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:24,021 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-10-24 14:17:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:24,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-10-24 14:17:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:24,023 INFO L225 Difference]: With dead ends: 38 [2020-10-24 14:17:24,024 INFO L226 Difference]: Without dead ends: 35 [2020-10-24 14:17:24,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:17:24,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-24 14:17:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-24 14:17:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-24 14:17:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-10-24 14:17:24,036 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 7 [2020-10-24 14:17:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:24,036 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-10-24 14:17:24,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:17:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-10-24 14:17:24,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 14:17:24,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:24,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:24,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:17:24,249 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash 855224063, now seen corresponding path program 1 times [2020-10-24 14:17:24,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:24,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655399189] [2020-10-24 14:17:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:25,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:17:25,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:25,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:25,477 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 6 [2020-10-24 14:17:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:25,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655399189] [2020-10-24 14:17:25,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:25,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:17:25,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061024598] [2020-10-24 14:17:25,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:17:25,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:25,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:17:25,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:17:25,495 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 4 states. [2020-10-24 14:17:25,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:25,634 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-10-24 14:17:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:17:25,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-24 14:17:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:25,639 INFO L225 Difference]: With dead ends: 35 [2020-10-24 14:17:25,639 INFO L226 Difference]: Without dead ends: 32 [2020-10-24 14:17:25,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:17:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-24 14:17:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-24 14:17:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-24 14:17:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-10-24 14:17:25,644 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 9 [2020-10-24 14:17:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:25,645 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-10-24 14:17:25,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:17:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-10-24 14:17:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 14:17:25,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:25,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:25,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:17:25,848 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:25,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:25,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1541979533, now seen corresponding path program 1 times [2020-10-24 14:17:25,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:25,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979312931] [2020-10-24 14:17:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:27,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:17:27,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:27,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:27,639 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 6 [2020-10-24 14:17:32,509 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 21 [2020-10-24 14:17:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:32,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979312931] [2020-10-24 14:17:32,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:32,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:17:32,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726874882] [2020-10-24 14:17:32,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:17:32,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:32,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:17:32,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-10-24 14:17:32,538 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 6 states. [2020-10-24 14:17:37,544 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-10-24 14:17:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:39,297 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-10-24 14:17:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:39,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-24 14:17:39,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:39,299 INFO L225 Difference]: With dead ends: 32 [2020-10-24 14:17:39,299 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 14:17:39,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-10-24 14:17:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 14:17:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 14:17:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 14:17:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2020-10-24 14:17:39,304 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 11 [2020-10-24 14:17:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:39,304 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2020-10-24 14:17:39,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:17:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2020-10-24 14:17:39,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 14:17:39,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:39,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:39,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:17:39,517 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:39,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:39,518 INFO L82 PathProgramCache]: Analyzing trace with hash 89023131, now seen corresponding path program 1 times [2020-10-24 14:17:39,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:39,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742795736] [2020-10-24 14:17:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:41,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:17:41,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:42,788 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-24 14:17:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:42,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:43,362 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 6 [2020-10-24 14:17:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:17:44,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742795736] [2020-10-24 14:17:44,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:44,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:17:44,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254465611] [2020-10-24 14:17:44,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:17:44,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:44,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:17:44,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:17:44,538 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 5 states. [2020-10-24 14:17:55,047 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-24 14:17:59,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:59,061 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2020-10-24 14:17:59,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:59,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-24 14:17:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:59,064 INFO L225 Difference]: With dead ends: 29 [2020-10-24 14:17:59,064 INFO L226 Difference]: Without dead ends: 26 [2020-10-24 14:17:59,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:17:59,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-24 14:17:59,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-24 14:17:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-24 14:17:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-10-24 14:17:59,071 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 13 [2020-10-24 14:17:59,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:59,072 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-10-24 14:17:59,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:17:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-10-24 14:17:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 14:17:59,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:59,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:59,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 14:17:59,281 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:59,283 INFO L82 PathProgramCache]: Analyzing trace with hash -337707479, now seen corresponding path program 1 times [2020-10-24 14:17:59,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:59,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380278039] [2020-10-24 14:17:59,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 14:18:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:00,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:18:00,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:00,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:02,336 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 23 DAG size of output: 15 [2020-10-24 14:18:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:02,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380278039] [2020-10-24 14:18:02,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:02,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:18:02,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656348318] [2020-10-24 14:18:02,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:18:02,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:02,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:18:02,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:02,372 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 4 states. [2020-10-24 14:18:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:04,942 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-10-24 14:18:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:18:04,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-24 14:18:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:04,944 INFO L225 Difference]: With dead ends: 26 [2020-10-24 14:18:04,944 INFO L226 Difference]: Without dead ends: 23 [2020-10-24 14:18:04,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-24 14:18:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-24 14:18:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-24 14:18:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-10-24 14:18:04,948 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 15 [2020-10-24 14:18:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:04,948 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-10-24 14:18:04,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:18:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-10-24 14:18:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 14:18:04,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:18:04,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:18:05,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 14:18:05,151 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:18:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:18:05,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1891037239, now seen corresponding path program 1 times [2020-10-24 14:18:05,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:18:05,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924113440] [2020-10-24 14:18:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:18:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:06,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:18:06,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:06,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:06,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924113440] [2020-10-24 14:18:06,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:06,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:18:06,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348627974] [2020-10-24 14:18:06,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:18:06,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:06,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:18:06,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:06,982 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2020-10-24 14:18:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:07,303 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-24 14:18:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:18:07,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-24 14:18:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:07,305 INFO L225 Difference]: With dead ends: 23 [2020-10-24 14:18:07,305 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 14:18:07,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:07,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 14:18:07,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 14:18:07,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 14:18:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-24 14:18:07,308 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 17 [2020-10-24 14:18:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:07,308 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-24 14:18:07,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:18:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-24 14:18:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 14:18:07,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:18:07,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:18:07,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 14:18:07,514 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:18:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:18:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash 526031045, now seen corresponding path program 1 times [2020-10-24 14:18:07,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:18:07,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447023269] [2020-10-24 14:18:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:18:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:09,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:18:09,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:09,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:18:09,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447023269] [2020-10-24 14:18:09,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:09,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:18:09,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540656593] [2020-10-24 14:18:09,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:18:09,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:09,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:18:09,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:09,330 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 4 states. [2020-10-24 14:18:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:09,520 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-10-24 14:18:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:18:09,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-24 14:18:09,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:09,529 INFO L225 Difference]: With dead ends: 20 [2020-10-24 14:18:09,530 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:18:09,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:18:09,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:18:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:18:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:18:09,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:18:09,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-24 14:18:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:09,532 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:18:09,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:18:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:18:09,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:18:09,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 14:18:09,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:18:09,739 INFO L274 CegarLoopResult]: For program point L382(line 382) no Hoare annotation was computed. [2020-10-24 14:18:09,739 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,739 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point L375(line 375) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point L375-2(line 375) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,740 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,741 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,741 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,741 INFO L274 CegarLoopResult]: For program point L12-7(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,741 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,741 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-11(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-15(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-16(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,742 INFO L274 CegarLoopResult]: For program point L12-18(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point L12-19(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point L12-20(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point L376-2(line 376) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,743 INFO L274 CegarLoopResult]: For program point L12-22(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-23(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-24(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-26(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-27(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-28(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,744 INFO L274 CegarLoopResult]: For program point L12-30(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point L12-31(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point L377(line 377) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point L377-2(line 377) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point L378(line 378) no Hoare annotation was computed. [2020-10-24 14:18:09,745 INFO L274 CegarLoopResult]: For program point L378-2(line 378) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point L379(line 379) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point L379-2(line 379) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,746 INFO L274 CegarLoopResult]: For program point L380(line 380) no Hoare annotation was computed. [2020-10-24 14:18:09,747 INFO L274 CegarLoopResult]: For program point L380-2(line 380) no Hoare annotation was computed. [2020-10-24 14:18:09,747 INFO L274 CegarLoopResult]: For program point L381(line 381) no Hoare annotation was computed. [2020-10-24 14:18:09,747 INFO L274 CegarLoopResult]: For program point L381-2(line 381) no Hoare annotation was computed. [2020-10-24 14:18:09,747 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:18:09,747 INFO L274 CegarLoopResult]: For program point L373(lines 373 383) no Hoare annotation was computed. [2020-10-24 14:18:09,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:18:09 BoogieIcfgContainer [2020-10-24 14:18:09,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:18:09,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:18:09,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:18:09,754 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:18:09,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:59" (3/4) ... [2020-10-24 14:18:09,759 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:18:09,774 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 14:18:09,779 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:18:09,779 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:09,780 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:09,867 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:18:09,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:18:09,869 INFO L168 Benchmark]: Toolchain (without parser) took 73490.54 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 19.6 MB in the beginning and 40.0 MB in the end (delta: -20.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,869 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:09,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1222.89 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.8 MB in the beginning and 18.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.36 ms. Allocated memory is still 54.5 MB. Free memory was 18.6 MB in the beginning and 35.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,871 INFO L168 Benchmark]: Boogie Preprocessor took 38.87 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 33.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:09,874 INFO L168 Benchmark]: RCFGBuilder took 1755.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 43.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,874 INFO L168 Benchmark]: TraceAbstraction took 70223.56 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 16.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,875 INFO L168 Benchmark]: Witness Printer took 113.98 ms. Allocated memory is still 67.1 MB. Free memory was 16.8 MB in the beginning and 40.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:09,877 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 44.0 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1222.89 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.8 MB in the beginning and 18.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.36 ms. Allocated memory is still 54.5 MB. Free memory was 18.6 MB in the beginning and 35.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.87 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 33.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1755.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 43.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 70223.56 ms. Allocated memory is still 67.1 MB. Free memory was 43.4 MB in the beginning and 16.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Witness Printer took 113.98 ms. Allocated memory is still 67.1 MB. Free memory was 16.8 MB in the beginning and 40.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 70.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 180 SDtfs, 191 SDslu, 318 SDs, 0 SdLazy, 86 SolverSat, 7 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 25.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 29.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 8.9s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 19 QuantifiedInterpolants, 10806 SizeOfPredicates, 22 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 32 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...