/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56b528cdad55d73be82b1982314f0a3b03a69ff8 ......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56b528cdad55d73be82b1982314f0a3b03a69ff8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:23:11,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:23:11,868 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:23:11,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:23:11,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:23:11,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:23:11,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:23:11,894 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:23:11,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:23:11,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:23:11,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:23:11,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:23:11,900 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:23:11,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:23:11,902 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:23:11,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:23:11,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:23:11,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:23:11,908 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:23:11,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:23:11,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:23:11,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:23:11,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:23:11,915 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:23:11,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:23:11,917 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:23:11,918 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:23:11,919 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:23:11,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:23:11,921 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:23:11,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:23:11,922 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:23:11,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:23:11,923 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:23:11,924 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:23:11,925 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:23:11,925 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:23:11,940 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:23:11,940 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:23:11,941 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:23:11,941 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:23:11,942 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:23:11,942 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:23:11,942 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:23:11,942 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:23:11,943 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:23:11,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:23:11,943 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:23:11,943 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:23:11,943 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:23:11,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:23:11,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:23:11,945 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:23:11,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:23:11,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:23:11,946 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:23:11,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:23:11,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:23:11,947 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:23:11,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:11,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:23:11,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:23:11,948 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:23:11,948 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:23:11,949 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:23:11,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:23:11,949 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 56b528cdad55d73be82b1982314f0a3b03a69ff8 [2018-09-20 15:23:12,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:23:12,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:23:12,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:23:12,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:23:12,039 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:23:12,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c [2018-09-20 15:23:12,395 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7591697/58553dfbe67b47b5884645d872aba78c/FLAG429b22634 [2018-09-20 15:23:12,590 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:23:12,590 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c [2018-09-20 15:23:12,605 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7591697/58553dfbe67b47b5884645d872aba78c/FLAG429b22634 [2018-09-20 15:23:12,623 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7591697/58553dfbe67b47b5884645d872aba78c [2018-09-20 15:23:12,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:23:12,630 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:23:12,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:12,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:23:12,638 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:23:12,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:12" (1/1) ... [2018-09-20 15:23:12,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c4cbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:12, skipping insertion in model container [2018-09-20 15:23:12,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:12" (1/1) ... [2018-09-20 15:23:12,655 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:23:12,990 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 15:23:13,002 INFO L168 Benchmark]: Toolchain (without parser) took 372.86 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:23:13,006 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:23:13,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:23:13,010 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:23:15,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:23:15,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:23:15,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:23:15,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:23:15,199 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:23:15,201 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:23:15,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:23:15,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:23:15,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:23:15,206 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:23:15,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:23:15,207 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:23:15,208 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:23:15,209 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:23:15,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:23:15,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:23:15,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:23:15,215 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:23:15,217 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:23:15,218 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:23:15,219 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:23:15,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:23:15,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:23:15,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:23:15,224 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:23:15,225 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:23:15,226 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:23:15,227 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:23:15,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:23:15,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:23:15,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:23:15,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:23:15,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:23:15,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:23:15,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:23:15,232 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:23:15,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:23:15,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:23:15,266 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:23:15,269 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:23:15,270 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:23:15,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:23:15,271 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:23:15,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:23:15,271 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:23:15,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:23:15,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:23:15,273 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:23:15,273 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:23:15,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:23:15,273 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:23:15,273 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:23:15,274 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:23:15,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:23:15,274 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:23:15,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:23:15,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:23:15,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:23:15,279 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:23:15,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:15,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:23:15,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:23:15,280 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 56b528cdad55d73be82b1982314f0a3b03a69ff8 [2018-09-20 15:23:15,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:23:15,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:23:15,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:23:15,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:23:15,384 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:23:15,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c [2018-09-20 15:23:15,745 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e31ef3e4/d5d28278b2ff4049a5925ee2f56c3867/FLAGab6cbdce6 [2018-09-20 15:23:15,942 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:23:15,943 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0878_true-unreach-call.c [2018-09-20 15:23:15,962 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e31ef3e4/d5d28278b2ff4049a5925ee2f56c3867/FLAGab6cbdce6 [2018-09-20 15:23:15,979 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e31ef3e4/d5d28278b2ff4049a5925ee2f56c3867 [2018-09-20 15:23:15,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:23:15,986 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:23:15,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:15,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:23:15,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:23:15,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:15" (1/1) ... [2018-09-20 15:23:16,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b80a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16, skipping insertion in model container [2018-09-20 15:23:16,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:15" (1/1) ... [2018-09-20 15:23:16,017 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:23:16,491 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:23:16,520 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:23:16,652 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:23:16,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16 WrapperNode [2018-09-20 15:23:16,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:16,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:23:16,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:23:16,724 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:23:16,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... [2018-09-20 15:23:16,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:23:16,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:23:16,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:23:16,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:23:16,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:23:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:23:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-20 15:23:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:23:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:23:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isinteger_float [2018-09-20 15:23:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:23:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:23:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:23:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:23:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:23:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:23:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:23:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-20 15:23:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:23:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure isinteger_float [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:23:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:23:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:23:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:23:17,540 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,558 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,618 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,627 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,955 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:17,966 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:22,992 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:23,019 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:23,259 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:23,267 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:25,140 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:25,173 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:27,402 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:27,408 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:29,536 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:29,576 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:31,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:31,802 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:32,408 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:32,415 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:34,528 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:34,534 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:36,788 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:36,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:39,069 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:39,075 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:41,293 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:41,306 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,025 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,040 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,648 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,664 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:42,804 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:43,051 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:43,078 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:43,139 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:43,177 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:44,644 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:44,665 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:45,787 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:45,803 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:45,808 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:23:45,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:23:45 BoogieIcfgContainer [2018-09-20 15:23:45,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:23:45,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:23:45,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:23:45,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:23:45,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:23:15" (1/3) ... [2018-09-20 15:23:45,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7affcda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:23:45, skipping insertion in model container [2018-09-20 15:23:45,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:16" (2/3) ... [2018-09-20 15:23:45,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7affcda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:23:45, skipping insertion in model container [2018-09-20 15:23:45,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:23:45" (3/3) ... [2018-09-20 15:23:45,820 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0878_true-unreach-call.c [2018-09-20 15:23:45,829 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:23:45,838 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:23:45,892 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:23:45,893 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:23:45,893 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:23:45,893 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:23:45,893 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:23:45,894 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:23:45,894 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:23:45,894 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:23:45,894 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:23:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states. [2018-09-20 15:23:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:23:45,949 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:45,951 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:23:45,953 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:45,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1904819352, now seen corresponding path program 1 times [2018-09-20 15:23:45,962 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:45,962 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:23:45,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:46,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:46,167 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:46,187 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:46,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:23:46,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:23:46,208 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:23:46,209 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:23:46,212 INFO L87 Difference]: Start difference. First operand 620 states. Second operand 2 states. [2018-09-20 15:23:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:46,306 INFO L93 Difference]: Finished difference Result 1229 states and 1597 transitions. [2018-09-20 15:23:46,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:23:46,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:23:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:46,329 INFO L225 Difference]: With dead ends: 1229 [2018-09-20 15:23:46,329 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:23:46,340 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:23:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:23:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:23:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:23:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 705 transitions. [2018-09-20 15:23:46,433 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 705 transitions. Word has length 22 [2018-09-20 15:23:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:46,436 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 705 transitions. [2018-09-20 15:23:46,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:23:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 705 transitions. [2018-09-20 15:23:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:23:46,440 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:46,440 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:23:46,441 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:46,441 INFO L82 PathProgramCache]: Analyzing trace with hash -289349596, now seen corresponding path program 1 times [2018-09-20 15:23:46,442 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:46,444 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:23:46,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:46,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:46,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:46,664 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:46,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:23:46,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:23:46,666 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:23:46,666 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:23:46,666 INFO L87 Difference]: Start difference. First operand 615 states and 705 transitions. Second operand 4 states. [2018-09-20 15:23:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:46,771 INFO L93 Difference]: Finished difference Result 1183 states and 1353 transitions. [2018-09-20 15:23:46,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:23:46,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-09-20 15:23:46,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:46,781 INFO L225 Difference]: With dead ends: 1183 [2018-09-20 15:23:46,781 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:23:46,784 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:23:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:23:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:23:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:23:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 703 transitions. [2018-09-20 15:23:46,829 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 703 transitions. Word has length 40 [2018-09-20 15:23:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:46,829 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 703 transitions. [2018-09-20 15:23:46,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:23:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 703 transitions. [2018-09-20 15:23:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-09-20 15:23:46,834 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:46,834 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:23:46,835 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1824332157, now seen corresponding path program 1 times [2018-09-20 15:23:46,837 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:46,837 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:23:46,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:47,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:47,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:23:47,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:23:47,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,452 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:23:47,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:23:47,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:23:47,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:23:47,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:23:47,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:23:47,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,654 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:23:47,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:23:47,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:23:47,780 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:47,797 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:23:48,262 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2018-09-20 15:23:48,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:23:48,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:23:48,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,623 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,634 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:23:48,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:23:48,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:23:48,712 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,715 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:23:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:49,100 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:49,120 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:49,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-20 15:23:49,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-20 15:23:49,121 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-20 15:23:49,122 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:23:49,122 INFO L87 Difference]: Start difference. First operand 615 states and 703 transitions. Second operand 18 states. [2018-09-20 15:23:49,917 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:23:51,796 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-20 15:23:54,234 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-09-20 15:24:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:08,551 INFO L93 Difference]: Finished difference Result 656 states and 748 transitions. [2018-09-20 15:24:08,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-20 15:24:08,554 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 90 [2018-09-20 15:24:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:08,559 INFO L225 Difference]: With dead ends: 656 [2018-09-20 15:24:08,559 INFO L226 Difference]: Without dead ends: 635 [2018-09-20 15:24:08,562 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=157, Invalid=1175, Unknown=0, NotChecked=0, Total=1332 [2018-09-20 15:24:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2018-09-20 15:24:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 622. [2018-09-20 15:24:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2018-09-20 15:24:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 711 transitions. [2018-09-20 15:24:08,596 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 711 transitions. Word has length 90 [2018-09-20 15:24:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:08,597 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 711 transitions. [2018-09-20 15:24:08,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-20 15:24:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 711 transitions. [2018-09-20 15:24:08,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-20 15:24:08,607 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:08,607 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:08,607 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash -3523512, now seen corresponding path program 1 times [2018-09-20 15:24:08,613 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:08,613 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:08,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:08,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:09,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:09,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:09,010 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,015 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,026 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:09,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:09,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:09,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:09,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:09,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:09,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,455 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,476 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:24:09,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:09,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:09,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,610 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,610 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:24:09,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:09,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:09,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,808 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:24:09,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:09,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:09,917 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,920 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:09,932 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:24:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:10,460 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:10,479 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:10,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-20 15:24:10,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-20 15:24:10,480 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-20 15:24:10,480 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:24:10,480 INFO L87 Difference]: Start difference. First operand 622 states and 711 transitions. Second operand 20 states. [2018-09-20 15:24:15,281 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:24:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:24,361 INFO L93 Difference]: Finished difference Result 1160 states and 1321 transitions. [2018-09-20 15:24:24,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:24:24,363 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 91 [2018-09-20 15:24:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:24,369 INFO L225 Difference]: With dead ends: 1160 [2018-09-20 15:24:24,370 INFO L226 Difference]: Without dead ends: 666 [2018-09-20 15:24:24,372 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2018-09-20 15:24:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2018-09-20 15:24:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 633. [2018-09-20 15:24:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:24:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 724 transitions. [2018-09-20 15:24:24,407 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 724 transitions. Word has length 91 [2018-09-20 15:24:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:24,408 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 724 transitions. [2018-09-20 15:24:24,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-20 15:24:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 724 transitions. [2018-09-20 15:24:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-20 15:24:24,412 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:24,412 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:24,412 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:24,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1674037081, now seen corresponding path program 1 times [2018-09-20 15:24:24,413 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:24,413 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:24,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:24,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:24,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:24,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:24,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,677 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:24,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:24,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:24,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:24,705 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:25,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:25,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:25,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,203 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:24:25,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:25,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:25,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,327 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:24:25,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:25,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:25,529 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,552 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:24:25,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:25,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:25,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:25,684 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:24:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:26,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:26,310 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:26,311 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-20 15:24:26,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-20 15:24:26,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-20 15:24:26,312 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:24:26,312 INFO L87 Difference]: Start difference. First operand 633 states and 724 transitions. Second operand 20 states. [2018-09-20 15:24:27,592 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:24:33,770 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-20 15:24:38,193 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:24:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:42,942 INFO L93 Difference]: Finished difference Result 1169 states and 1334 transitions. [2018-09-20 15:24:42,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:24:42,946 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 91 [2018-09-20 15:24:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:42,951 INFO L225 Difference]: With dead ends: 1169 [2018-09-20 15:24:42,951 INFO L226 Difference]: Without dead ends: 675 [2018-09-20 15:24:42,954 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2018-09-20 15:24:42,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2018-09-20 15:24:42,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 633. [2018-09-20 15:24:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:24:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 724 transitions. [2018-09-20 15:24:42,987 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 724 transitions. Word has length 91 [2018-09-20 15:24:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:42,987 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 724 transitions. [2018-09-20 15:24:42,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-20 15:24:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 724 transitions. [2018-09-20 15:24:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-09-20 15:24:42,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:42,990 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:42,990 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:42,991 INFO L82 PathProgramCache]: Analyzing trace with hash 773416615, now seen corresponding path program 1 times [2018-09-20 15:24:42,991 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:42,992 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:43,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:43,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:43,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:43,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:43,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:43,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:43,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:43,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:43,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:43,752 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:43,766 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:43,766 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:24:43,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:24:43,767 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:24:43,767 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:24:43,767 INFO L87 Difference]: Start difference. First operand 633 states and 724 transitions. Second operand 9 states. [2018-09-20 15:24:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:50,131 INFO L93 Difference]: Finished difference Result 765 states and 871 transitions. [2018-09-20 15:24:50,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:24:50,138 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2018-09-20 15:24:50,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:50,145 INFO L225 Difference]: With dead ends: 765 [2018-09-20 15:24:50,145 INFO L226 Difference]: Without dead ends: 741 [2018-09-20 15:24:50,146 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:24:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-09-20 15:24:50,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 633. [2018-09-20 15:24:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:24:50,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 721 transitions. [2018-09-20 15:24:50,181 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 721 transitions. Word has length 92 [2018-09-20 15:24:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:50,182 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 721 transitions. [2018-09-20 15:24:50,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:24:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 721 transitions. [2018-09-20 15:24:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-09-20 15:24:50,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:50,185 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:50,185 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:50,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1660920296, now seen corresponding path program 1 times [2018-09-20 15:24:50,186 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:50,186 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:50,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:50,703 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:50,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:50,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:50,769 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:24:50,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:50,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:50,867 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,873 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,887 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:24:50,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:50,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:50,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:50,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:51,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:51,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:34 [2018-09-20 15:24:51,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:51,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:51,123 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:51,192 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:51,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:51,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:22 [2018-09-20 15:24:53,603 WARN L797 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_11 (_ BitVec 32))) (and (= |c_fmod_float_#in~y| (fp ((_ extract 31 31) v_prenex_11) ((_ extract 30 23) v_prenex_11) ((_ extract 22 0) v_prenex_11))) (bvsgt (bvand v_prenex_11 (_ bv2147483647 32)) (_ bv2139095040 32)))) (exists ((v_prenex_9 (_ BitVec 32))) (= |c_fmod_float_#res| (let ((.cse0 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_9) ((_ extract 30 23) v_prenex_9) ((_ extract 22 0) v_prenex_9)) |c_fmod_float_#in~y|))) (fp.div RNE .cse0 .cse0))))) (and (exists ((v_prenex_5 (_ BitVec 32))) (= (let ((.cse1 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_5) ((_ extract 30 23) v_prenex_5) ((_ extract 22 0) v_prenex_5)) |c_fmod_float_#in~y|))) (fp.div RNE .cse1 .cse1)) |c_fmod_float_#res|)) (exists ((v_prenex_7 (_ BitVec 32))) (and (= (_ bv0 32) (bvand v_prenex_7 (_ bv2147483647 32))) (= (fp ((_ extract 31 31) v_prenex_7) ((_ extract 30 23) v_prenex_7) ((_ extract 22 0) v_prenex_7)) |c_fmod_float_#in~y|)))) (and (exists ((v_fmod_float_~hx~0_37 (_ BitVec 32))) (and (= |c_fmod_float_#res| (let ((.cse2 (fp.mul RNE (fp ((_ extract 31 31) v_fmod_float_~hx~0_37) ((_ extract 30 23) v_fmod_float_~hx~0_37) ((_ extract 22 0) v_fmod_float_~hx~0_37)) |c_fmod_float_#in~y|))) (fp.div RNE .cse2 .cse2))) (not (bvslt (bvxor v_fmod_float_~hx~0_37 (bvand v_fmod_float_~hx~0_37 (_ bv2147483648 32))) (_ bv2139095040 32))))) (exists ((v_fmod_float_~hy~0_22 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hy~0_22) ((_ extract 30 23) v_fmod_float_~hy~0_22) ((_ extract 22 0) v_fmod_float_~hy~0_22)) |c_fmod_float_#in~y|)))) is different from false [2018-09-20 15:25:17,005 WARN L178 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:25:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:18,029 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:18,043 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:18,043 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:25:18,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:25:18,044 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:25:18,044 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=95, Unknown=8, NotChecked=20, Total=156 [2018-09-20 15:25:18,044 INFO L87 Difference]: Start difference. First operand 633 states and 721 transitions. Second operand 13 states. [2018-09-20 15:26:37,976 WARN L797 $PredicateComparison]: unable to prove that (and (= c_fmod_float_~y |c_fmod_float_#in~y|) (exists ((v_fmod_float_~hy~0_22 (_ BitVec 32))) (and (= c_fmod_float_~hy~0 (bvand v_fmod_float_~hy~0_22 (_ bv2147483647 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hy~0_22) ((_ extract 30 23) v_fmod_float_~hy~0_22) ((_ extract 22 0) v_fmod_float_~hy~0_22)) c_fmod_float_~y))) (or (and (exists ((v_prenex_11 (_ BitVec 32))) (and (= |c_fmod_float_#in~y| (fp ((_ extract 31 31) v_prenex_11) ((_ extract 30 23) v_prenex_11) ((_ extract 22 0) v_prenex_11))) (bvsgt (bvand v_prenex_11 (_ bv2147483647 32)) (_ bv2139095040 32)))) (exists ((v_prenex_9 (_ BitVec 32))) (= |c_fmod_float_#res| (let ((.cse0 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_9) ((_ extract 30 23) v_prenex_9) ((_ extract 22 0) v_prenex_9)) |c_fmod_float_#in~y|))) (fp.div RNE .cse0 .cse0))))) (and (exists ((v_prenex_5 (_ BitVec 32))) (= (let ((.cse1 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_5) ((_ extract 30 23) v_prenex_5) ((_ extract 22 0) v_prenex_5)) |c_fmod_float_#in~y|))) (fp.div RNE .cse1 .cse1)) |c_fmod_float_#res|)) (exists ((v_prenex_7 (_ BitVec 32))) (and (= (_ bv0 32) (bvand v_prenex_7 (_ bv2147483647 32))) (= (fp ((_ extract 31 31) v_prenex_7) ((_ extract 30 23) v_prenex_7) ((_ extract 22 0) v_prenex_7)) |c_fmod_float_#in~y|)))) (and (exists ((v_fmod_float_~hx~0_37 (_ BitVec 32))) (and (= |c_fmod_float_#res| (let ((.cse2 (fp.mul RNE (fp ((_ extract 31 31) v_fmod_float_~hx~0_37) ((_ extract 30 23) v_fmod_float_~hx~0_37) ((_ extract 22 0) v_fmod_float_~hx~0_37)) |c_fmod_float_#in~y|))) (fp.div RNE .cse2 .cse2))) (not (bvslt (bvxor v_fmod_float_~hx~0_37 (bvand v_fmod_float_~hx~0_37 (_ bv2147483648 32))) (_ bv2139095040 32))))) (exists ((v_fmod_float_~hy~0_22 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hy~0_22) ((_ extract 30 23) v_fmod_float_~hy~0_22) ((_ extract 22 0) v_fmod_float_~hy~0_22)) |c_fmod_float_#in~y|)))) (exists ((v_fmod_float_~hx~0_37 (_ BitVec 32))) (and (= (bvxor v_fmod_float_~hx~0_37 (bvand v_fmod_float_~hx~0_37 (_ bv2147483648 32))) c_fmod_float_~hx~0) (= (fp ((_ extract 31 31) v_fmod_float_~hx~0_37) ((_ extract 30 23) v_fmod_float_~hx~0_37) ((_ extract 22 0) v_fmod_float_~hx~0_37)) c_fmod_float_~x)))) is different from false [2018-09-20 15:26:59,319 WARN L178 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:27:26,351 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-20 15:27:26,354 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:690) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-20 15:27:26,363 INFO L168 Benchmark]: Toolchain (without parser) took 250379.09 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.9 MB). Free memory was 951.8 MB in the beginning and 951.5 MB in the end (delta: 314.7 kB). Peak memory consumption was 311.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,363 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:27:26,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.10 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,366 INFO L168 Benchmark]: Boogie Preprocessor took 156.22 ms. Allocated memory is still 1.0 GB. Free memory was 919.6 MB in the beginning and 908.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,367 INFO L168 Benchmark]: RCFGBuilder took 28928.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 908.9 MB in the beginning and 1.0 GB in the end (delta: -91.7 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,367 INFO L168 Benchmark]: TraceAbstraction took 220550.92 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.3 MB). Free memory was 993.6 MB in the beginning and 951.5 MB in the end (delta: 42.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 733.10 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 156.22 ms. Allocated memory is still 1.0 GB. Free memory was 919.6 MB in the beginning and 908.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 28928.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 908.9 MB in the beginning and 1.0 GB in the end (delta: -91.7 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220550.92 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 157.3 MB). Free memory was 993.6 MB in the beginning and 951.5 MB in the end (delta: 42.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...