/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0883_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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_0883_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 8c7963ed585a0c92e8c8e014b8d4f1bd36963ddd --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................... 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_0883_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 8c7963ed585a0c92e8c8e014b8d4f1bd36963ddd --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:32:18,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:32:18,384 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:32:18,397 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:32:18,397 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:32:18,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:32:18,403 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:32:18,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:32:18,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:32:18,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:32:18,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:32:18,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:32:18,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:32:18,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:32:18,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:32:18,425 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:32:18,426 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:32:18,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:32:18,432 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:32:18,434 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:32:18,435 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:32:18,436 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:32:18,438 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:32:18,438 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:32:18,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:32:18,439 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:32:18,440 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:32:18,441 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:32:18,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:32:18,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:32:18,443 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:32:18,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:32:18,444 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:32:18,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:32:18,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:32:18,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:32:18,446 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:32:18,461 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:32:18,461 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:32:18,462 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:32:18,462 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:32:18,463 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:32:18,463 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:32:18,463 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:32:18,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:32:18,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:32:18,465 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:32:18,465 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:32:18,465 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:32:18,465 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:32:18,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:32:18,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:32:18,466 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:32:18,467 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:32:18,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:32:18,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:32:18,467 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 -> 8c7963ed585a0c92e8c8e014b8d4f1bd36963ddd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:32:18,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:32:18,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:32:18,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:32:18,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:32:18,552 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:32:18,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0883_true-unreach-call.c [2018-09-21 18:32:18,948 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c273292/3ae0d691f7b248e5b4885292a6c1e024/FLAG990bc50d7 [2018-09-21 18:32:19,198 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:32:19,199 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0883_true-unreach-call.c [2018-09-21 18:32:19,218 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c273292/3ae0d691f7b248e5b4885292a6c1e024/FLAG990bc50d7 [2018-09-21 18:32:19,235 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c273292/3ae0d691f7b248e5b4885292a6c1e024 [2018-09-21 18:32:19,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:32:19,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:32:19,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:32:19,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:32:19,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:32:19,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:32:19" (1/1) ... [2018-09-21 18:32:19,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5963dda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:19, skipping insertion in model container [2018-09-21 18:32:19,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:32:19" (1/1) ... [2018-09-21 18:32:19,273 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:32:19,598 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) [2018-09-21 18:32:19,611 INFO L168 Benchmark]: Toolchain (without parser) took 369.43 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. [2018-09-21 18:32:19,614 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. [2018-09-21 18:32:19,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.67 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. [2018-09-21 18:32:19,618 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 363.67 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 0.1.23-5eb3fea [2018-09-21 18:32:21,876 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:32:21,878 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:32:21,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:32:21,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:32:21,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:32:21,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:32:21,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:32:21,897 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:32:21,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:32:21,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:32:21,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:32:21,900 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:32:21,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:32:21,902 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:32:21,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:32:21,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:32:21,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:32:21,908 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:32:21,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:32:21,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:32:21,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:32:21,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:32:21,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:32:21,915 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:32:21,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:32:21,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:32:21,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:32:21,924 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:32:21,930 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:32:21,930 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:32:21,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:32:21,931 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:32:21,931 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:32:21,932 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:32:21,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:32:21,933 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:32:21,965 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:32:21,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:32:21,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:32:21,966 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:32:21,970 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:32:21,970 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:32:21,970 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:32:21,970 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:32:21,970 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:32:21,971 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:32:21,972 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:32:21,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:32:21,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:32:21,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:32:21,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:32:21,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:32:21,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:32:21,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:32:21,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:32:21,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:32:21,974 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:32:21,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:32:21,975 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:32:21,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:32:21,975 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:32:21,975 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:32:21,975 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 -> 8c7963ed585a0c92e8c8e014b8d4f1bd36963ddd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:32:22,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:32:22,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:32:22,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:32:22,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:32:22,071 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:32:22,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0883_true-unreach-call.c [2018-09-21 18:32:22,418 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a83a302/98e021a6b4ea449a9c4d5ce0a419d137/FLAGf95832bb8 [2018-09-21 18:32:22,668 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:32:22,669 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0883_true-unreach-call.c [2018-09-21 18:32:22,691 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a83a302/98e021a6b4ea449a9c4d5ce0a419d137/FLAGf95832bb8 [2018-09-21 18:32:22,708 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a83a302/98e021a6b4ea449a9c4d5ce0a419d137 [2018-09-21 18:32:22,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:32:22,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:32:22,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:32:22,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:32:22,726 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:32:22,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:32:22" (1/1) ... [2018-09-21 18:32:22,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a0a11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:22, skipping insertion in model container [2018-09-21 18:32:22,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:32:22" (1/1) ... [2018-09-21 18:32:22,743 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:32:23,283 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:32:23,317 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:32:23,468 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:32:23,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23 WrapperNode [2018-09-21 18:32:23,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:32:23,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:32:23,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:32:23,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:32:23,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (1/1) ... [2018-09-21 18:32:23,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:32:23,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:32:23,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:32:23,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:32:23,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (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 [2018-09-21 18:32:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:32:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:32:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-21 18:32:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:32:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:32:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:32:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:32:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-21 18:32:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:32:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:32:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:32:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:32:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:32:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:32:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:32:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-21 18:32:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-21 18:32:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:32:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-21 18:32:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:32:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:32:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:32:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:32:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:32:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:32:24,374 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,399 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,447 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,460 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,587 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,603 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,698 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:24,706 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:29,383 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:29,413 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:29,648 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:29,654 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:31,264 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:31,272 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:33,559 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:33,570 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:35,686 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:35,724 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:37,871 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:37,878 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:38,511 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:38,541 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:40,116 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:40,129 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:41,944 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:41,952 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:44,250 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:44,257 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:44,470 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:44,477 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:46,593 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:46,601 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:46,709 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:46,715 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:47,258 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:47,265 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:47,331 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:47,371 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:49,301 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:49,307 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:49,617 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:49,624 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:32:50,142 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:32:50,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:32:50 BoogieIcfgContainer [2018-09-21 18:32:50,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:32:50,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:32:50,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:32:50,148 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:32:50,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:32:22" (1/3) ... [2018-09-21 18:32:50,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016d20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:32:50, skipping insertion in model container [2018-09-21 18:32:50,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:32:23" (2/3) ... [2018-09-21 18:32:50,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016d20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:32:50, skipping insertion in model container [2018-09-21 18:32:50,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:32:50" (3/3) ... [2018-09-21 18:32:50,153 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0883_true-unreach-call.c [2018-09-21 18:32:50,163 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:32:50,172 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:32:50,217 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:32:50,218 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:32:50,218 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:32:50,218 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:32:50,218 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:32:50,218 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:32:50,218 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:32:50,219 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:32:50,219 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:32:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states. [2018-09-21 18:32:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-21 18:32:50,265 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:50,267 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] [2018-09-21 18:32:50,270 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1686127018, now seen corresponding path program 1 times [2018-09-21 18:32:50,284 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:50,285 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 [2018-09-21 18:32:50,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:50,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:32:50,477 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:50,495 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:50,495 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:32:50,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:32:50,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:32:50,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:32:50,515 INFO L87 Difference]: Start difference. First operand 500 states. Second operand 2 states. [2018-09-21 18:32:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:50,569 INFO L93 Difference]: Finished difference Result 500 states and 563 transitions. [2018-09-21 18:32:50,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:32:50,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-21 18:32:50,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:50,594 INFO L225 Difference]: With dead ends: 500 [2018-09-21 18:32:50,594 INFO L226 Difference]: Without dead ends: 495 [2018-09-21 18:32:50,596 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:32:50,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-21 18:32:50,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2018-09-21 18:32:50,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-09-21 18:32:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 557 transitions. [2018-09-21 18:32:50,689 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 557 transitions. Word has length 24 [2018-09-21 18:32:50,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:50,690 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 557 transitions. [2018-09-21 18:32:50,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:32:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 557 transitions. [2018-09-21 18:32:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 18:32:50,694 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:50,694 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] [2018-09-21 18:32:50,694 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:50,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1887085590, now seen corresponding path program 1 times [2018-09-21 18:32:50,697 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:50,697 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 [2018-09-21 18:32:50,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:50,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:51,012 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 [2018-09-21 18:32:51,023 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 [2018-09-21 18:32:51,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,031 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,043 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:51,094 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 [2018-09-21 18:32:51,115 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 [2018-09-21 18:32:51,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,139 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:51,146 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:32:51,411 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:51,429 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:51,429 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:32:51,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:32:51,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:32:51,433 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:32:51,433 INFO L87 Difference]: Start difference. First operand 495 states and 557 transitions. Second operand 9 states. [2018-09-21 18:32:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:59,542 INFO L93 Difference]: Finished difference Result 497 states and 558 transitions. [2018-09-21 18:32:59,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:32:59,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2018-09-21 18:32:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:59,559 INFO L225 Difference]: With dead ends: 497 [2018-09-21 18:32:59,560 INFO L226 Difference]: Without dead ends: 495 [2018-09-21 18:32:59,561 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:32:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-21 18:32:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2018-09-21 18:32:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-09-21 18:32:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 556 transitions. [2018-09-21 18:32:59,622 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 556 transitions. Word has length 51 [2018-09-21 18:32:59,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:59,622 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 556 transitions. [2018-09-21 18:32:59,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:32:59,623 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 556 transitions. [2018-09-21 18:32:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-21 18:32:59,625 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:59,626 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] [2018-09-21 18:32:59,626 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1489801530, now seen corresponding path program 1 times [2018-09-21 18:32:59,628 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:59,629 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 [2018-09-21 18:32:59,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:59,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:59,875 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 [2018-09-21 18:32:59,882 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 [2018-09-21 18:32:59,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:59,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:59,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:59,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:32:59,975 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 [2018-09-21 18:32:59,982 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 [2018-09-21 18:32:59,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:59,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:33:00,110 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 [2018-09-21 18:33:00,115 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 [2018-09-21 18:33:00,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,145 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:33:00,222 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 [2018-09-21 18:33:00,243 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 [2018-09-21 18:33:00,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,270 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:00,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:33:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:00,886 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:00,902 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:00,903 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:33:00,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:33:00,903 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:33:00,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:33:00,904 INFO L87 Difference]: Start difference. First operand 495 states and 556 transitions. Second operand 13 states. [2018-09-21 18:33:02,806 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:33:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:26,072 INFO L93 Difference]: Finished difference Result 605 states and 677 transitions. [2018-09-21 18:33:26,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:33:26,073 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2018-09-21 18:33:26,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:26,079 INFO L225 Difference]: With dead ends: 605 [2018-09-21 18:33:26,079 INFO L226 Difference]: Without dead ends: 602 [2018-09-21 18:33:26,080 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-09-21 18:33:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2018-09-21 18:33:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 494. [2018-09-21 18:33:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2018-09-21 18:33:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 553 transitions. [2018-09-21 18:33:26,101 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 553 transitions. Word has length 53 [2018-09-21 18:33:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:26,102 INFO L480 AbstractCegarLoop]: Abstraction has 494 states and 553 transitions. [2018-09-21 18:33:26,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:33:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 553 transitions. [2018-09-21 18:33:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-21 18:33:26,105 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:26,105 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] [2018-09-21 18:33:26,105 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:26,105 INFO L82 PathProgramCache]: Analyzing trace with hash -611604368, now seen corresponding path program 1 times [2018-09-21 18:33:26,106 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:26,106 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) [2018-09-21 18:33:26,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:33:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:26,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:26,333 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 [2018-09-21 18:33:26,348 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 [2018-09-21 18:33:26,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,419 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:26,439 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 [2018-09-21 18:33:26,442 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 [2018-09-21 18:33:26,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,447 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:26,450 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:26,584 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:26,601 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:26,602 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:33:26,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:33:26,602 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:33:26,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:33:26,603 INFO L87 Difference]: Start difference. First operand 494 states and 553 transitions. Second operand 9 states. [2018-09-21 18:33:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:33,643 INFO L93 Difference]: Finished difference Result 605 states and 675 transitions. [2018-09-21 18:33:33,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:33:33,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2018-09-21 18:33:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:33,648 INFO L225 Difference]: With dead ends: 605 [2018-09-21 18:33:33,648 INFO L226 Difference]: Without dead ends: 602 [2018-09-21 18:33:33,648 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:33:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2018-09-21 18:33:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 494. [2018-09-21 18:33:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2018-09-21 18:33:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 551 transitions. [2018-09-21 18:33:33,665 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 551 transitions. Word has length 55 [2018-09-21 18:33:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:33,666 INFO L480 AbstractCegarLoop]: Abstraction has 494 states and 551 transitions. [2018-09-21 18:33:33,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:33:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 551 transitions. [2018-09-21 18:33:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 18:33:33,669 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:33,669 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] [2018-09-21 18:33:33,669 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:33,670 INFO L82 PathProgramCache]: Analyzing trace with hash -677451277, now seen corresponding path program 1 times [2018-09-21 18:33:33,670 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:33,670 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 [2018-09-21 18:33:33,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:34,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:34,081 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 [2018-09-21 18:33:34,086 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 [2018-09-21 18:33:34,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,091 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:34,136 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 [2018-09-21 18:33:34,152 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 [2018-09-21 18:33:34,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:34,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:34,232 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:34,248 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:34,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:33:34,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:33:34,249 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:33:34,249 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:33:34,250 INFO L87 Difference]: Start difference. First operand 494 states and 551 transitions. Second operand 8 states. [2018-09-21 18:33:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:41,124 INFO L93 Difference]: Finished difference Result 503 states and 561 transitions. [2018-09-21 18:33:41,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:33:41,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2018-09-21 18:33:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:41,129 INFO L225 Difference]: With dead ends: 503 [2018-09-21 18:33:41,130 INFO L226 Difference]: Without dead ends: 494 [2018-09-21 18:33:41,130 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:33:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-09-21 18:33:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2018-09-21 18:33:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2018-09-21 18:33:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 546 transitions. [2018-09-21 18:33:41,145 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 546 transitions. Word has length 56 [2018-09-21 18:33:41,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:41,146 INFO L480 AbstractCegarLoop]: Abstraction has 494 states and 546 transitions. [2018-09-21 18:33:41,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:33:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 546 transitions. [2018-09-21 18:33:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 18:33:41,149 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:41,149 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] [2018-09-21 18:33:41,150 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:41,150 INFO L82 PathProgramCache]: Analyzing trace with hash -466100364, now seen corresponding path program 1 times [2018-09-21 18:33:41,151 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:41,151 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) [2018-09-21 18:33:41,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:33:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:41,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:41,524 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 [2018-09-21 18:33:41,544 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 [2018-09-21 18:33:41,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,632 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:41,710 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 [2018-09-21 18:33:41,722 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 [2018-09-21 18:33:41,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:41,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:41,944 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:41,956 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:41,956 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:33:41,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:33:41,957 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:33:41,957 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:33:41,957 INFO L87 Difference]: Start difference. First operand 494 states and 546 transitions. Second operand 13 states. [2018-09-21 18:33:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:49,941 INFO L93 Difference]: Finished difference Result 499 states and 551 transitions. [2018-09-21 18:33:49,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:33:49,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2018-09-21 18:33:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:49,949 INFO L225 Difference]: With dead ends: 499 [2018-09-21 18:33:49,949 INFO L226 Difference]: Without dead ends: 493 [2018-09-21 18:33:49,950 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-21 18:33:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2018-09-21 18:33:49,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2018-09-21 18:33:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-09-21 18:33:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 544 transitions. [2018-09-21 18:33:49,975 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 544 transitions. Word has length 56 [2018-09-21 18:33:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:49,976 INFO L480 AbstractCegarLoop]: Abstraction has 493 states and 544 transitions. [2018-09-21 18:33:49,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:33:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 544 transitions. [2018-09-21 18:33:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 18:33:49,977 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:49,978 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] [2018-09-21 18:33:49,978 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:49,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1221043565, now seen corresponding path program 1 times [2018-09-21 18:33:49,984 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:49,985 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) [2018-09-21 18:33:50,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:33:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:50,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:51,248 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:33:51,666 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 [2018-09-21 18:33:51,669 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 [2018-09-21 18:33:51,669 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:51,884 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 [2018-09-21 18:33:51,898 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 [2018-09-21 18:33:51,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:52,660 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:52,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:52,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:33:52,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:33:52,674 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:33:52,674 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:33:52,674 INFO L87 Difference]: Start difference. First operand 493 states and 544 transitions. Second operand 13 states. [2018-09-21 18:33:54,746 WARN L178 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:34:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:09,532 INFO L93 Difference]: Finished difference Result 498 states and 549 transitions. [2018-09-21 18:34:09,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:34:09,536 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2018-09-21 18:34:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:09,540 INFO L225 Difference]: With dead ends: 498 [2018-09-21 18:34:09,541 INFO L226 Difference]: Without dead ends: 493 [2018-09-21 18:34:09,542 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-21 18:34:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2018-09-21 18:34:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2018-09-21 18:34:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-09-21 18:34:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 543 transitions. [2018-09-21 18:34:09,557 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 543 transitions. Word has length 56 [2018-09-21 18:34:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:09,561 INFO L480 AbstractCegarLoop]: Abstraction has 493 states and 543 transitions. [2018-09-21 18:34:09,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:34:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 543 transitions. [2018-09-21 18:34:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:34:09,562 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:09,562 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] [2018-09-21 18:34:09,563 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:09,563 INFO L82 PathProgramCache]: Analyzing trace with hash -242481312, now seen corresponding path program 1 times [2018-09-21 18:34:09,563 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:09,567 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:34:09,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:09,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:09,790 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 [2018-09-21 18:34:09,797 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 [2018-09-21 18:34:09,797 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,831 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:34:09,872 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 [2018-09-21 18:34:09,885 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 [2018-09-21 18:34:09,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:09,916 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:34:10,399 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 [2018-09-21 18:34:10,404 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 [2018-09-21 18:34:10,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,418 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:10,478 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 [2018-09-21 18:34:10,482 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 [2018-09-21 18:34:10,482 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:34:10,763 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:10,774 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:10,774 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-21 18:34:10,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-21 18:34:10,775 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-21 18:34:10,775 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:34:10,775 INFO L87 Difference]: Start difference. First operand 493 states and 543 transitions. Second operand 19 states. [2018-09-21 18:34:12,503 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2018-09-21 18:34:23,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:23,048 INFO L93 Difference]: Finished difference Result 502 states and 552 transitions. [2018-09-21 18:34:23,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-21 18:34:23,050 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 58 [2018-09-21 18:34:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:23,053 INFO L225 Difference]: With dead ends: 502 [2018-09-21 18:34:23,054 INFO L226 Difference]: Without dead ends: 495 [2018-09-21 18:34:23,054 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=136, Invalid=1054, Unknown=0, NotChecked=0, Total=1190 [2018-09-21 18:34:23,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-21 18:34:23,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 491. [2018-09-21 18:34:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2018-09-21 18:34:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 540 transitions. [2018-09-21 18:34:23,091 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 540 transitions. Word has length 58 [2018-09-21 18:34:23,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:23,092 INFO L480 AbstractCegarLoop]: Abstraction has 491 states and 540 transitions. [2018-09-21 18:34:23,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-21 18:34:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 540 transitions. [2018-09-21 18:34:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-21 18:34:23,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:23,093 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] [2018-09-21 18:34:23,093 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:23,095 INFO L82 PathProgramCache]: Analyzing trace with hash -384186458, now seen corresponding path program 1 times [2018-09-21 18:34:23,096 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:23,096 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:34:23,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:23,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:23,280 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 [2018-09-21 18:34:23,285 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 [2018-09-21 18:34:23,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,292 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,305 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:23,327 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 [2018-09-21 18:34:23,330 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 [2018-09-21 18:34:23,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:23,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:34:23,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:23,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:23,482 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:34:23,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:34:23,483 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:34:23,483 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:34:23,483 INFO L87 Difference]: Start difference. First operand 491 states and 540 transitions. Second operand 9 states. [2018-09-21 18:34:29,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:29,290 INFO L93 Difference]: Finished difference Result 813 states and 886 transitions. [2018-09-21 18:34:29,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:34:29,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-09-21 18:34:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:29,296 INFO L225 Difference]: With dead ends: 813 [2018-09-21 18:34:29,296 INFO L226 Difference]: Without dead ends: 582 [2018-09-21 18:34:29,297 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:34:29,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2018-09-21 18:34:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 475. [2018-09-21 18:34:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2018-09-21 18:34:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 521 transitions. [2018-09-21 18:34:29,309 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 521 transitions. Word has length 58 [2018-09-21 18:34:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:29,309 INFO L480 AbstractCegarLoop]: Abstraction has 475 states and 521 transitions. [2018-09-21 18:34:29,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:34:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 521 transitions. [2018-09-21 18:34:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-09-21 18:34:29,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:29,311 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] [2018-09-21 18:34:29,311 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:29,311 INFO L82 PathProgramCache]: Analyzing trace with hash 39357067, now seen corresponding path program 1 times [2018-09-21 18:34:29,312 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:29,312 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:34:29,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:34:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:29,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:32,606 WARN L178 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 6 [2018-09-21 18:34:37,921 WARN L178 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-21 18:34:43,824 WARN L178 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-21 18:34:47,587 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 [2018-09-21 18:34:47,593 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 [2018-09-21 18:34:47,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:47,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:47,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:47,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:48,828 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 [2018-09-21 18:34:48,831 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 [2018-09-21 18:34:48,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:48,835 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:48,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:48,838 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:34:55,691 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:55,703 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:55,704 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-21 18:34:55,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-21 18:34:55,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-21 18:34:55,704 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=209, Unknown=2, NotChecked=0, Total=240 [2018-09-21 18:34:55,705 INFO L87 Difference]: Start difference. First operand 475 states and 521 transitions. Second operand 16 states. [2018-09-21 18:35:11,292 WARN L178 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 18:35:21,702 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 18:35:32,659 WARN L178 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 18:36:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:14,681 INFO L93 Difference]: Finished difference Result 483 states and 529 transitions. [2018-09-21 18:36:14,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:36:14,682 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 75 [2018-09-21 18:36:14,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:14,685 INFO L225 Difference]: With dead ends: 483 [2018-09-21 18:36:14,685 INFO L226 Difference]: Without dead ends: 475 [2018-09-21 18:36:14,686 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 51.5s TimeCoverageRelationStatistics Valid=89, Invalid=664, Unknown=3, NotChecked=0, Total=756 [2018-09-21 18:36:14,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-09-21 18:36:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2018-09-21 18:36:14,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2018-09-21 18:36:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 520 transitions. [2018-09-21 18:36:14,699 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 520 transitions. Word has length 75 [2018-09-21 18:36:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:14,700 INFO L480 AbstractCegarLoop]: Abstraction has 475 states and 520 transitions. [2018-09-21 18:36:14,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-21 18:36:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 520 transitions. [2018-09-21 18:36:14,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-21 18:36:14,701 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:14,703 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] [2018-09-21 18:36:14,703 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:14,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1565139862, now seen corresponding path program 1 times [2018-09-21 18:36:14,704 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:14,704 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:36:14,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:14,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:14,911 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 [2018-09-21 18:36:14,915 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 [2018-09-21 18:36:14,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:14,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:14,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:14,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:15,014 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 [2018-09-21 18:36:15,018 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 [2018-09-21 18:36:15,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:15,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:15,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:15,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:15,216 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:15,228 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:15,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:36:15,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:36:15,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:36:15,229 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:36:15,229 INFO L87 Difference]: Start difference. First operand 475 states and 520 transitions. Second operand 11 states. [2018-09-21 18:36:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:18,535 INFO L93 Difference]: Finished difference Result 483 states and 528 transitions. [2018-09-21 18:36:18,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:36:18,537 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2018-09-21 18:36:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:18,540 INFO L225 Difference]: With dead ends: 483 [2018-09-21 18:36:18,540 INFO L226 Difference]: Without dead ends: 429 [2018-09-21 18:36:18,540 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:36:18,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2018-09-21 18:36:18,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2018-09-21 18:36:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2018-09-21 18:36:18,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 463 transitions. [2018-09-21 18:36:18,551 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 463 transitions. Word has length 76 [2018-09-21 18:36:18,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:18,552 INFO L480 AbstractCegarLoop]: Abstraction has 429 states and 463 transitions. [2018-09-21 18:36:18,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:36:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 463 transitions. [2018-09-21 18:36:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-09-21 18:36:18,553 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:18,553 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] [2018-09-21 18:36:18,553 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash 570141276, now seen corresponding path program 1 times [2018-09-21 18:36:18,556 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:18,557 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:18,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:18,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:18,972 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 [2018-09-21 18:36:18,977 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 [2018-09-21 18:36:18,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:18,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:18,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:18,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:19,027 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 [2018-09-21 18:36:19,031 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 [2018-09-21 18:36:19,031 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:19,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:19,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:19,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:19,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:19,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:19,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:36:19,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:36:19,233 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:36:19,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:36:19,233 INFO L87 Difference]: Start difference. First operand 429 states and 463 transitions. Second operand 9 states. [2018-09-21 18:36:24,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:24,651 INFO L93 Difference]: Finished difference Result 538 states and 582 transitions. [2018-09-21 18:36:24,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:36:24,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-09-21 18:36:24,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:24,655 INFO L225 Difference]: With dead ends: 538 [2018-09-21 18:36:24,655 INFO L226 Difference]: Without dead ends: 320 [2018-09-21 18:36:24,657 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:36:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-09-21 18:36:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 318. [2018-09-21 18:36:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-09-21 18:36:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 346 transitions. [2018-09-21 18:36:24,665 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 346 transitions. Word has length 85 [2018-09-21 18:36:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:24,665 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 346 transitions. [2018-09-21 18:36:24,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:36:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 346 transitions. [2018-09-21 18:36:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-21 18:36:24,666 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:24,669 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] [2018-09-21 18:36:24,669 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:24,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1750406080, now seen corresponding path program 1 times [2018-09-21 18:36:24,671 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:24,671 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:24,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:24,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:24,987 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 [2018-09-21 18:36:24,992 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 [2018-09-21 18:36:24,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:24,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,007 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:25,031 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 [2018-09-21 18:36:25,035 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 [2018-09-21 18:36:25,035 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:25,092 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 13 treesize of output 10 [2018-09-21 18:36:25,097 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 10 treesize of output 9 [2018-09-21 18:36:25,098 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:36:25,135 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:36:25,188 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 31 treesize of output 23 [2018-09-21 18:36:25,194 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 23 treesize of output 15 [2018-09-21 18:36:25,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,198 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:36:25,210 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:36:25,980 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 [2018-09-21 18:36:25,986 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 [2018-09-21 18:36:25,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:25,991 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:26,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:26,002 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:26,103 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 [2018-09-21 18:36:26,111 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 [2018-09-21 18:36:26,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:26,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:26,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:26,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:26,613 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:26,625 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:26,625 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-09-21 18:36:26,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-21 18:36:26,627 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-21 18:36:26,627 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-09-21 18:36:26,627 INFO L87 Difference]: Start difference. First operand 318 states and 346 transitions. Second operand 24 states. [2018-09-21 18:36:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:44,465 INFO L93 Difference]: Finished difference Result 326 states and 354 transitions. [2018-09-21 18:36:44,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-21 18:36:44,466 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 87 [2018-09-21 18:36:44,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:44,469 INFO L225 Difference]: With dead ends: 326 [2018-09-21 18:36:44,469 INFO L226 Difference]: Without dead ends: 320 [2018-09-21 18:36:44,471 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=183, Invalid=2073, Unknown=0, NotChecked=0, Total=2256 [2018-09-21 18:36:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-09-21 18:36:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 318. [2018-09-21 18:36:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-09-21 18:36:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 344 transitions. [2018-09-21 18:36:44,480 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 344 transitions. Word has length 87 [2018-09-21 18:36:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:44,481 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 344 transitions. [2018-09-21 18:36:44,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-21 18:36:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 344 transitions. [2018-09-21 18:36:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-09-21 18:36:44,482 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:44,482 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] [2018-09-21 18:36:44,482 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1911851466, now seen corresponding path program 1 times [2018-09-21 18:36:44,486 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:44,486 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:44,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:44,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:44,719 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 [2018-09-21 18:36:44,728 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 [2018-09-21 18:36:44,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,744 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:44,766 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 [2018-09-21 18:36:44,774 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 [2018-09-21 18:36:44,775 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:44,782 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:44,939 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:44,953 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:44,953 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:36:44,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:36:44,954 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:36:44,954 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:36:44,954 INFO L87 Difference]: Start difference. First operand 318 states and 344 transitions. Second operand 8 states. [2018-09-21 18:36:46,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:46,322 INFO L93 Difference]: Finished difference Result 458 states and 498 transitions. [2018-09-21 18:36:46,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:36:46,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2018-09-21 18:36:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:46,325 INFO L225 Difference]: With dead ends: 458 [2018-09-21 18:36:46,326 INFO L226 Difference]: Without dead ends: 309 [2018-09-21 18:36:46,326 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:36:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-09-21 18:36:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2018-09-21 18:36:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-09-21 18:36:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 328 transitions. [2018-09-21 18:36:46,336 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 328 transitions. Word has length 89 [2018-09-21 18:36:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:46,336 INFO L480 AbstractCegarLoop]: Abstraction has 309 states and 328 transitions. [2018-09-21 18:36:46,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:36:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 328 transitions. [2018-09-21 18:36:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-21 18:36:46,340 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:46,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:36:46,340 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:46,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1412603032, now seen corresponding path program 1 times [2018-09-21 18:36:46,341 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:36:46,341 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:36:46,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2018-09-21 18:36:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:47,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:36:47,462 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 [2018-09-21 18:36:47,467 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 [2018-09-21 18:36:47,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,484 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:36:47,510 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 [2018-09-21 18:36:47,514 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 [2018-09-21 18:36:47,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,518 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:36:47,522 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:36:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:47,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:36:47,816 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:47,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:36:47,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:36:47,818 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:36:47,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:36:47,819 INFO L87 Difference]: Start difference. First operand 309 states and 328 transitions. Second operand 9 states. [2018-09-21 18:36:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:51,406 INFO L93 Difference]: Finished difference Result 290 states and 309 transitions. [2018-09-21 18:36:51,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:36:51,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 145 [2018-09-21 18:36:51,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:51,408 INFO L225 Difference]: With dead ends: 290 [2018-09-21 18:36:51,408 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:36:51,408 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:36:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:36:51,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:36:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:36:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:36:51,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2018-09-21 18:36:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:51,409 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:36:51,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:36:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:36:51,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:36:51,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:36:51 BoogieIcfgContainer [2018-09-21 18:36:51,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:36:51,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:36:51,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:36:51,418 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:36:51,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:32:50" (3/4) ... [2018-09-21 18:36:51,423 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:36:51,430 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:36:51,430 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:36:51,430 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_powf [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_float [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmod_float [2018-09-21 18:36:51,431 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-21 18:36:51,452 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2018-09-21 18:36:51,454 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-09-21 18:36:51,455 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-21 18:36:51,456 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:36:51,626 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:36:51,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:36:51,628 INFO L168 Benchmark]: Toolchain (without parser) took 268914.26 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -104.2 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,629 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. [2018-09-21 18:36:51,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 917.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,629 INFO L168 Benchmark]: Boogie Preprocessor took 252.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 917.0 MB in the beginning and 1.1 GB in the end (delta: -216.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,630 INFO L168 Benchmark]: RCFGBuilder took 26367.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 137.0 MB). Peak memory consumption was 137.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,630 INFO L168 Benchmark]: TraceAbstraction took 241273.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.0 MB). Free memory was 996.8 MB in the beginning and 1.1 GB in the end (delta: -82.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,630 INFO L168 Benchmark]: Witness Printer took 207.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:51,635 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 803.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 917.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 252.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 917.0 MB in the beginning and 1.1 GB in the end (delta: -216.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 26367.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 137.0 MB). Peak memory consumption was 137.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 241273.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.0 MB). Free memory was 996.8 MB in the beginning and 1.1 GB in the end (delta: -82.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Witness Printer took 207.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 615]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 571 locations, 1 error locations. SAFE Result, 241.2s OverallTime, 15 OverallIterations, 1 TraceHistogramMax, 200.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7812 SDtfs, 8014 SDslu, 58852 SDs, 0 SdLazy, 5171 SolverSat, 163 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 155.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1151 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 70.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 331 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 35.8s InterpolantComputationTime, 1024 NumberOfCodeBlocks, 1024 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1009 ConstructedInterpolants, 166 QuantifiedInterpolants, 605662 SizeOfPredicates, 144 NumberOfNonLiveVariables, 3646 ConjunctsInSsa, 194 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...