/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0879_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0879_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 282af3869506c4e7bc53a64a76edba567724d963 ......................................................................................................................................................... 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_0879_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 282af3869506c4e7bc53a64a76edba567724d963 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:23:51,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:23:51,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:23:51,904 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:23:51,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:23:51,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:23:51,908 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:23:51,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:23:51,912 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:23:51,913 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:23:51,914 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:23:51,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:23:51,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:23:51,917 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:23:51,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:23:51,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:23:51,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:23:51,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:23:51,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:23:51,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:23:51,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:23:51,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:23:51,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:23:51,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:23:51,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:23:51,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:23:51,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:23:51,937 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:23:51,938 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:23:51,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:23:51,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:23:51,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:23:51,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:23:51,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:23:51,943 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:23:51,944 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:23:51,944 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:23:51,961 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:23:51,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:23:51,963 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:23:51,963 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:23:51,964 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:23:51,964 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:23:51,964 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:23:51,965 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:23:51,965 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:23:51,966 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:23:51,966 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:23:51,966 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:23:51,966 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:23:51,967 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:23:51,967 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:23:51,968 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:23:51,968 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:23:51,968 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:23:51,968 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:23:51,968 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:23:51,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:23:51,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:23:51,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:51,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:23:51,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:23:51,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:23:51,971 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:23:51,971 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:23:51,972 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:23:51,972 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 -> 282af3869506c4e7bc53a64a76edba567724d963 [2018-09-20 15:23:52,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:23:52,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:23:52,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:23:52,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:23:52,044 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:23:52,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0879_true-unreach-call.c [2018-09-20 15:23:52,390 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aa1c79f/14f7683442df424da136bdb40bcfae72/FLAG08cecd2f1 [2018-09-20 15:23:52,647 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:23:52,647 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0879_true-unreach-call.c [2018-09-20 15:23:52,669 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aa1c79f/14f7683442df424da136bdb40bcfae72/FLAG08cecd2f1 [2018-09-20 15:23:52,683 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aa1c79f/14f7683442df424da136bdb40bcfae72 [2018-09-20 15:23:52,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:23:52,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:23:52,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:52,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:23:52,697 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:23:52,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:52" (1/1) ... [2018-09-20 15:23:52,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf358be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:52, skipping insertion in model container [2018-09-20 15:23:52,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:52" (1/1) ... [2018-09-20 15:23:52,712 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:23:53,038 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 15:23:53,046 INFO L168 Benchmark]: Toolchain (without parser) took 358.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:23:53,049 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:23:53,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:23:53,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 354.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:23:55,252 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:23:55,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:23:55,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:23:55,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:23:55,276 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:23:55,278 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:23:55,282 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:23:55,285 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:23:55,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:23:55,288 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:23:55,288 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:23:55,290 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:23:55,290 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:23:55,292 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:23:55,293 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:23:55,294 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:23:55,296 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:23:55,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:23:55,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:23:55,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:23:55,307 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:23:55,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:23:55,312 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:23:55,312 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:23:55,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:23:55,314 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:23:55,315 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:23:55,317 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:23:55,318 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:23:55,318 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:23:55,319 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:23:55,319 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:23:55,319 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:23:55,320 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:23:55,323 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:23:55,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:23:55,351 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:23:55,351 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:23:55,352 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:23:55,353 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:23:55,354 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:23:55,355 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:23:55,355 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:23:55,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:23:55,356 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:23:55,356 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:23:55,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:23:55,356 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:23:55,356 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:23:55,357 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:23:55,358 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:23:55,358 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:23:55,358 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:23:55,358 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:23:55,359 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:23:55,359 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:23:55,359 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:23:55,359 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:23:55,359 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:23:55,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:55,362 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:23:55,362 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:23:55,362 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:23:55,362 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:23:55,363 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:23:55,363 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:23:55,363 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:23:55,364 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 -> 282af3869506c4e7bc53a64a76edba567724d963 [2018-09-20 15:23:55,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:23:55,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:23:55,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:23:55,457 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:23:55,459 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:23:55,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0879_true-unreach-call.c [2018-09-20 15:23:55,802 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec0baf4e/3ca7abb4ee7045ba8b084bc0b9ab2b3d/FLAG13561ee03 [2018-09-20 15:23:56,003 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:23:56,004 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0879_true-unreach-call.c [2018-09-20 15:23:56,017 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec0baf4e/3ca7abb4ee7045ba8b084bc0b9ab2b3d/FLAG13561ee03 [2018-09-20 15:23:56,034 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec0baf4e/3ca7abb4ee7045ba8b084bc0b9ab2b3d [2018-09-20 15:23:56,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:23:56,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:23:56,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:56,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:23:56,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:23:56,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104d8b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56, skipping insertion in model container [2018-09-20 15:23:56,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,066 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:23:56,551 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:23:56,579 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:23:56,778 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:23:56,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56 WrapperNode [2018-09-20 15:23:56,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:23:56,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:23:56,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:23:56,855 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:23:56,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:56,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:57,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:57,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... [2018-09-20 15:23:57,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:23:57,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:23:57,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:23:57,145 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:23:57,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:23:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:23:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:23:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-20 15:23:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:23:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:23:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-20 15:23:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:23:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-20 15:23:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:23:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:23:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isinteger_float [2018-09-20 15:23:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:23:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:23:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:23:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-20 15:23:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:23:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:23:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:23:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:23:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:23:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:23:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:23:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:23:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-20 15:23:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:23:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-20 15:23:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:23:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:23:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure isinteger_float [2018-09-20 15:23:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:23:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:23:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:23:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:23:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:23:57,780 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:57,822 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:57,928 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:57,941 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:58,092 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:58,135 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:58,212 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:23:58,248 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:03,144 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:03,183 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:03,522 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:03,533 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:05,699 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:05,720 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:08,085 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:08,093 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:10,218 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:10,257 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:12,421 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:12,430 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:13,210 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:13,216 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:15,348 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:15,389 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:18,051 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:18,058 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:20,348 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:20,406 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:22,658 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:22,685 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:23,252 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:23,267 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,091 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,106 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,244 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,250 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,395 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,418 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,487 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:24,520 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:26,014 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:26,020 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:26,985 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:27,027 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:24:27,032 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:24:27,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:24:27 BoogieIcfgContainer [2018-09-20 15:24:27,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:24:27,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:24:27,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:24:27,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:24:27,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:23:56" (1/3) ... [2018-09-20 15:24:27,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae021f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:24:27, skipping insertion in model container [2018-09-20 15:24:27,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:23:56" (2/3) ... [2018-09-20 15:24:27,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae021f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:24:27, skipping insertion in model container [2018-09-20 15:24:27,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:24:27" (3/3) ... [2018-09-20 15:24:27,043 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0879_true-unreach-call.c [2018-09-20 15:24:27,054 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:24:27,064 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:24:27,118 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:24:27,119 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:24:27,119 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:24:27,119 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:24:27,119 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:24:27,120 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:24:27,120 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:24:27,120 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:24:27,120 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:24:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states. [2018-09-20 15:24:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:24:27,167 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:27,169 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:27,171 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:27,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1904819352, now seen corresponding path program 1 times [2018-09-20 15:24:27,185 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:27,186 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:27,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:27,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:27,412 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:27,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:27,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:24:27,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:24:27,444 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:24:27,445 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:24:27,447 INFO L87 Difference]: Start difference. First operand 620 states. Second operand 2 states. [2018-09-20 15:24:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:27,546 INFO L93 Difference]: Finished difference Result 1229 states and 1597 transitions. [2018-09-20 15:24:27,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:24:27,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:24:27,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:27,568 INFO L225 Difference]: With dead ends: 1229 [2018-09-20 15:24:27,568 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:24:27,579 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:24:27,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:24:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:24:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:24:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 705 transitions. [2018-09-20 15:24:27,669 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 705 transitions. Word has length 22 [2018-09-20 15:24:27,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:27,670 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 705 transitions. [2018-09-20 15:24:27,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:24:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 705 transitions. [2018-09-20 15:24:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:24:27,673 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:27,673 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:27,674 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:27,674 INFO L82 PathProgramCache]: Analyzing trace with hash -289349596, now seen corresponding path program 1 times [2018-09-20 15:24:27,675 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:27,675 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:27,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:27,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:27,901 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:27,918 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:27,918 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:24:27,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:24:27,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:24:27,922 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:24:27,922 INFO L87 Difference]: Start difference. First operand 615 states and 705 transitions. Second operand 4 states. [2018-09-20 15:24:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:28,107 INFO L93 Difference]: Finished difference Result 1183 states and 1353 transitions. [2018-09-20 15:24:28,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:24:28,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-09-20 15:24:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:28,114 INFO L225 Difference]: With dead ends: 1183 [2018-09-20 15:24:28,114 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:24:28,117 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:24:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:24:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:24:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:24:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 703 transitions. [2018-09-20 15:24:28,146 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 703 transitions. Word has length 40 [2018-09-20 15:24:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:28,146 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 703 transitions. [2018-09-20 15:24:28,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:24:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 703 transitions. [2018-09-20 15:24:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-09-20 15:24:28,150 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:28,150 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:28,150 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:28,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1824332157, now seen corresponding path program 1 times [2018-09-20 15:24:28,152 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:28,152 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:28,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:28,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:28,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:28,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:28,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:24:28,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:28,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:28,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:28,934 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:24:29,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:29,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:29,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,037 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:24:29,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:29,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:29,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:29,220 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:24:29,724 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2018-09-20 15:24:30,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:30,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:30,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,172 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:30,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:30,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:30,271 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:30,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:30,719 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:30,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:30,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-20 15:24:30,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-20 15:24:30,739 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-20 15:24:30,739 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:24:30,740 INFO L87 Difference]: Start difference. First operand 615 states and 703 transitions. Second operand 18 states. [2018-09-20 15:24:35,273 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-09-20 15:24:47,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:47,820 INFO L93 Difference]: Finished difference Result 656 states and 748 transitions. [2018-09-20 15:24:47,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-20 15:24:47,822 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 90 [2018-09-20 15:24:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:47,828 INFO L225 Difference]: With dead ends: 656 [2018-09-20 15:24:47,829 INFO L226 Difference]: Without dead ends: 635 [2018-09-20 15:24:47,830 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=157, Invalid=1175, Unknown=0, NotChecked=0, Total=1332 [2018-09-20 15:24:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2018-09-20 15:24:47,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 622. [2018-09-20 15:24:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2018-09-20 15:24:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 711 transitions. [2018-09-20 15:24:47,862 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 711 transitions. Word has length 90 [2018-09-20 15:24:47,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:47,863 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 711 transitions. [2018-09-20 15:24:47,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-20 15:24:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 711 transitions. [2018-09-20 15:24:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-20 15:24:47,868 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:47,868 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:24:47,868 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:47,868 INFO L82 PathProgramCache]: Analyzing trace with hash -3523512, now seen corresponding path program 1 times [2018-09-20 15:24:47,869 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:47,869 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:24:47,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:48,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:48,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:48,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:48,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,289 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,299 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:48,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:48,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:48,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:48,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:48,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:48,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,749 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:24:48,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:48,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:48,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:48,911 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:24:49,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:49,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:49,111 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:24:49,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:49,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:49,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:49,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:24:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:49,830 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:49,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:49,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-20 15:24:49,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-20 15:24:49,846 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-20 15:24:49,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:24:49,847 INFO L87 Difference]: Start difference. First operand 622 states and 711 transitions. Second operand 20 states. [2018-09-20 15:25:02,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:25:02,887 INFO L93 Difference]: Finished difference Result 1160 states and 1321 transitions. [2018-09-20 15:25:02,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:25:02,889 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 91 [2018-09-20 15:25:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:25:02,894 INFO L225 Difference]: With dead ends: 1160 [2018-09-20 15:25:02,894 INFO L226 Difference]: Without dead ends: 666 [2018-09-20 15:25:02,896 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2018-09-20 15:25:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2018-09-20 15:25:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 633. [2018-09-20 15:25:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:25:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 724 transitions. [2018-09-20 15:25:02,928 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 724 transitions. Word has length 91 [2018-09-20 15:25:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:25:02,928 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 724 transitions. [2018-09-20 15:25:02,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-20 15:25:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 724 transitions. [2018-09-20 15:25:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-20 15:25:02,933 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:25:02,933 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:25:02,933 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:25:02,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1674037081, now seen corresponding path program 1 times [2018-09-20 15:25:02,934 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:25:02,934 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:25:02,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:25:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:25:03,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:25:03,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:03,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:03,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:25:03,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:03,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:03,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:25:03,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:03,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:03,607 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,612 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:25:03,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:03,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:03,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,780 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:25:03,980 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 [2018-09-20 15:25:03,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:03,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:03,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:04,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:04,007 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-20 15:25:04,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:04,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:04,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:04,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:04,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:04,146 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-20 15:25:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:04,720 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:04,731 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:04,731 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-20 15:25:04,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-20 15:25:04,732 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-20 15:25:04,733 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:25:04,733 INFO L87 Difference]: Start difference. First operand 633 states and 724 transitions. Second operand 20 states. [2018-09-20 15:25:17,725 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:25:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:25:21,006 INFO L93 Difference]: Finished difference Result 1169 states and 1334 transitions. [2018-09-20 15:25:21,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:25:21,010 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 91 [2018-09-20 15:25:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:25:21,015 INFO L225 Difference]: With dead ends: 1169 [2018-09-20 15:25:21,016 INFO L226 Difference]: Without dead ends: 675 [2018-09-20 15:25:21,019 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2018-09-20 15:25:21,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2018-09-20 15:25:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 633. [2018-09-20 15:25:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:25:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 724 transitions. [2018-09-20 15:25:21,064 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 724 transitions. Word has length 91 [2018-09-20 15:25:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:25:21,064 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 724 transitions. [2018-09-20 15:25:21,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-20 15:25:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 724 transitions. [2018-09-20 15:25:21,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-09-20 15:25:21,066 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:25:21,068 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:25:21,068 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:25:21,068 INFO L82 PathProgramCache]: Analyzing trace with hash 773416615, now seen corresponding path program 1 times [2018-09-20 15:25:21,069 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:25:21,069 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) [2018-09-20 15:25:21,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:25:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:25:21,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:25:21,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:21,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:21,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:25:21,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:21,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:21,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:21,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:25:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:21,873 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:21,888 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:21,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:25:21,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:25:21,889 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:25:21,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:25:21,889 INFO L87 Difference]: Start difference. First operand 633 states and 724 transitions. Second operand 9 states. [2018-09-20 15:25:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:25:28,830 INFO L93 Difference]: Finished difference Result 765 states and 871 transitions. [2018-09-20 15:25:28,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:25:28,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2018-09-20 15:25:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:25:28,838 INFO L225 Difference]: With dead ends: 765 [2018-09-20 15:25:28,838 INFO L226 Difference]: Without dead ends: 741 [2018-09-20 15:25:28,839 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:25:28,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-09-20 15:25:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 633. [2018-09-20 15:25:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-20 15:25:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 721 transitions. [2018-09-20 15:25:28,879 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 721 transitions. Word has length 92 [2018-09-20 15:25:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:25:28,881 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 721 transitions. [2018-09-20 15:25:28,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:25:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 721 transitions. [2018-09-20 15:25:28,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-09-20 15:25:28,884 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:25:28,885 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:25:28,885 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:25:28,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1660920296, now seen corresponding path program 1 times [2018-09-20 15:25:28,886 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:25:28,886 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:25:28,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:25:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:25:29,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:25:29,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:29,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:29,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:25:29,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:29,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:29,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:25:29,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:29,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:29,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,629 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,629 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:34 [2018-09-20 15:25:29,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:29,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:29,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,742 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:29,743 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:22 [2018-09-20 15:25:32,076 WARN L797 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_11 (_ BitVec 32))) (and (= |c_fmod_float_#in~y| (fp ((_ extract 31 31) v_prenex_11) ((_ extract 30 23) v_prenex_11) ((_ extract 22 0) v_prenex_11))) (bvsgt (bvand v_prenex_11 (_ bv2147483647 32)) (_ bv2139095040 32)))) (exists ((v_prenex_9 (_ BitVec 32))) (= |c_fmod_float_#res| (let ((.cse0 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_9) ((_ extract 30 23) v_prenex_9) ((_ extract 22 0) v_prenex_9)) |c_fmod_float_#in~y|))) (fp.div RNE .cse0 .cse0))))) (and (exists ((v_prenex_5 (_ BitVec 32))) (= (let ((.cse1 (fp.mul RNE (fp ((_ extract 31 31) v_prenex_5) ((_ extract 30 23) v_prenex_5) ((_ extract 22 0) v_prenex_5)) |c_fmod_float_#in~y|))) (fp.div RNE .cse1 .cse1)) |c_fmod_float_#res|)) (exists ((v_prenex_7 (_ BitVec 32))) (and (= (_ bv0 32) (bvand v_prenex_7 (_ bv2147483647 32))) (= (fp ((_ extract 31 31) v_prenex_7) ((_ extract 30 23) v_prenex_7) ((_ extract 22 0) v_prenex_7)) |c_fmod_float_#in~y|)))) (and (exists ((v_fmod_float_~hx~0_37 (_ BitVec 32))) (and (= |c_fmod_float_#res| (let ((.cse2 (fp.mul RNE (fp ((_ extract 31 31) v_fmod_float_~hx~0_37) ((_ extract 30 23) v_fmod_float_~hx~0_37) ((_ extract 22 0) v_fmod_float_~hx~0_37)) |c_fmod_float_#in~y|))) (fp.div RNE .cse2 .cse2))) (not (bvslt (bvxor v_fmod_float_~hx~0_37 (bvand v_fmod_float_~hx~0_37 (_ bv2147483648 32))) (_ bv2139095040 32))))) (exists ((v_fmod_float_~hy~0_22 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hy~0_22) ((_ extract 30 23) v_fmod_float_~hy~0_22) ((_ extract 22 0) v_fmod_float_~hy~0_22)) |c_fmod_float_#in~y|)))) is different from false [2018-09-20 15:25:55,764 WARN L178 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:25:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:56,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:56,956 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:56,956 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:25:56,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:25:56,957 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:25:56,957 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=95, Unknown=8, NotChecked=20, Total=156 [2018-09-20 15:25:56,958 INFO L87 Difference]: Start difference. First operand 633 states and 721 transitions. Second operand 13 states. [2018-09-20 15:27:26,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:27:26,582 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:858) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:381) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 43 more [2018-09-20 15:27:26,592 INFO L168 Benchmark]: Toolchain (without parser) took 210553.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.9 MB). Free memory was 953.2 MB in the beginning and 928.2 MB in the end (delta: 25.0 MB). Peak memory consumption was 335.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,593 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:27:26,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 921.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,594 INFO L168 Benchmark]: Boogie Preprocessor took 289.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 921.0 MB in the beginning and 1.1 GB in the end (delta: -224.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,595 INFO L168 Benchmark]: RCFGBuilder took 29888.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 152.3 MB). Peak memory consumption was 152.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,595 INFO L168 Benchmark]: TraceAbstraction took 179556.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 993.0 MB in the beginning and 928.2 MB in the end (delta: 64.8 MB). Peak memory consumption was 221.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:26,607 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 810.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 921.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 289.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 921.0 MB in the beginning and 1.1 GB in the end (delta: -224.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 29888.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 152.3 MB). Peak memory consumption was 152.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 179556.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 993.0 MB in the beginning and 928.2 MB in the end (delta: 64.8 MB). Peak memory consumption was 221.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...